VIKING CUP F3F Race1990 F3F FAI provisional class model Glider Slope Rac ing contrast normal US practice F3F ra ces plane time against clock Eu ropeans decided racing four planes time too expensive Americans other hand prefer daredevil mano-a-mano damn collisions heat-racing style competition would interesting some top racers would go Europe compete F3F Theres no reason shouldnt well because best racers probably just fast may seem bit tame comparison pressure ex citement still Since its likely FAI will adopt both types racing aspirants World Class slope competition will undoubtedly doing F3F Danish friend Preben Norholm has long-time promoter F3F fact Danes have dominated F3F years Recently Brit ish Germans have gotten very competitive what Preben others sport want see iendly international meetings tight competition between individuals coun tries Preben attended 1990 Viking Cup held central England last October kind enough send cs following report eight nations 16 teams 49 competi tOrs biggest international F3F contest ever perfect weather made greatest F3F event ever too bad no Amer ican competitors Mr Dale Willoughby ever came way Guam watch contest F3F advance over Europe 1991 likely see three international events Prague England Den mark meet again great Viking Cup Race 1992 likely Norway Nic Wright did again very precise consistent flying just miracle man transmitter hand resistance way 10th final round untilnow rather unknown Kowalski brothers Co logne Germany Kowalski brothers placed first second big Okioberfest F3B con test Munich just two weeks before always good strong wind mostly between 10 20 in/sec 22 44 mph Buxton slopes fabulous No raln except during practice round during wind exceeded upper limit 25 in/sec 55 mph Thats what call storm too cold taking time year account mostly tween 500 600 F results no less spectacular Before contest watched two con test flights below 40 seconds time saw Nic Wright earn 831 points discard round doing 3973 seconds because Peter Kowal ski made unbelievable 3303-second run same round Both brothers have wonderfully aggressive flying style fly same F3B models seem turn dime give SC change use Quabeck 10/90 wing airfoils 22% flaps flaps allerons de flected some 3 4 mm %42 down ward full Up elevator course record-breaking flights occasional wind its strong est combined big thermal Also top pilots turned 45- 50-second flight because did something wrong because fly during less favorable con ditions After 10 rounds evens out Two teams catne Germany four England Norway Iceland N Ireland two Denmark Representatives two new countries Austria France showed up came learnlike Ger mans did Denmark last year certainly did flying Team G-S together two Germans father son Horzitz never learned team got name did place too badly thanks son Armin Munich Germanys top F3B pilots 48 Model Aviation Radio Control Soaring Byron Blakeslee 3134 N Winnebafo Dr 35 Iceland population just over 200000 competes internationally F3F class Heres team competed England beautiful gliders national colors left Rafn Thorarensen Bodvar Gudmundsson Frimann Frimannason two three-man Danish teams viking cup Danish pianes typically use twist-wing roil control Viking Cup slope races England Peter Kowaiski Germany set new F3F speed record placed third overall Gilder de signed F3B competition 100-in span V-Tail Peters brother Klaus sec ond wIth Nic Wright Britain winning second time row Frank Westons 160-In wing span Termina tor Frank gives detailed description vacuum bag glider wings co lumn pupil Raif Decker Through first nine rounds Nic Peter very close nobody could know would wineven Nic mostly leading position last round Peter fly ing before Nic knew make record flight get ahead Nic too much nerves After two cuts A-base turn simply gave up completed flight inverted Second place safe thought did matter brother Klaus made perfect flight last round crept few points ahead him way three days after contest Nics wife Pam gave birth beautiful boy James So dont expect 21st century come much easier F3F pilots planet Thanks Preben Norholm fascinating report Making vacuum-bagged wings Im going de vote remainder months column single subject vacuum bagging method making Glider wings has around over 10 years hasnt become very popularuntil re cently see more builders go ing technique think its time pass along some detailed information Bagging still fairly high-tech process realize experienced builders will feel ready try think beginning Sailplaners will find interesting process ap preciate benefits file information away future reference bagging expert Frank Weston may recall Franks description Terminator last Augusts column Magic Januarys Franks article reprinted below originally ap peared Capital Area Soaring Associations newsletter ably edited Gus Pelasus Vacuum pumps available Frank among others about $120 Franks comment about making pump zero cost done right certainly piqued interest Next month Ill describe made pumpnot exactly nothing pretty cheap Now over Frank Jet Fuel Tanks So Inexpensive Theyre Going Fast Somebodys finally come up ducted fan fuel tank costs less Boeing 747 Whats 11-ounce Sullivan fuel tank #380 has advantages higher priced tanks well some sought-after features its own instance its seamless greater protection against leaks its reversible left nt tank Only /16 thick fits around virtually 4 6 diameter fan units because uses standard Sullivan hardware replacement parts readily available Fully equipped glow fuel parts simple kit enables convert gasoline use easily vent tube bubble also gives maximum capacity longer flights between re-fuelings Fly down dealer soon ask about Sullivan jet fuel tanks prices PRODUCI down earth weve made easier PD Box 5166 Baltimore MD 21224 ever take off Getting Better Ideas Off Ground learned lot designing building Termi nator much what learned can result lighter stronger stiffer cheaper quicker building no matter what project Termina tors wings biggest departure con ventional methods lets discuss build Foam Wing Cores Wing construction starts cutting cores extruded foam blank cutting foam cores nothing new wont get other say cost Gentle Lady kit can buy equipment necessary cut own cores Call Nor-Ray Products see Aircraft Spruce Specialty Company catalog comprehensive list sources materials tools provided end article Styrene foam comes two major varieties extruded expanded bead Expanded bead foam kind found soda coolers typ ical foam-and-balsa kits Expanded bead foam light because formed discrete separate expanded beads cant easily sanded ab sorbs resin between beads fragile respects Extruded foam homogene ous easily sanded absorbs little resin weighs costs little expanded bead differentials insignificant purposes Because extruded foam workable absorbs less resin foam used Gliders Extruded foam panels 4 ft x 8 ft x 15 can obtained VIeck Company Balti Ask Dow Greyboard weighs 15 pounds per cubic foot Less $10 worth foam will build two Terminators plus Two terContinued page 186 March 1991 49 FOAMAIREIHAIrILK 10 SPAN 30-33 LBS 50-7500 POWER 74 IN WING SPAN 6-7 LBS 45-60 POWER 10 SPAN 19-22 LBS 35-42CC POWER 5-10 LB PAYLOAD OPTIONAL SPREADER4 OH PLY FOAM AND BALSA WOODCHOOSE 3 OR 4 OH SLOW AND STABLE KIT $26995 SPDKiT$1995 T $69953 CH $14995 4 CH $16495 SEND $100 FOR CATALOGRT 1 NEODESIIA KS 66757 OF SAC KITS AND ACC325-2821 FREE SHIPPING ON KIT ORDERSseoASTERCARD could have revolutionized way begin-turn until ready come out youof dual instruction ner learns Radio Control flying dia-apply opposite aileron opposite rudderINSTRUCTOR Are saying e follows strictly fiction some-against proverse yaw relax up el-BEGINNER Yes Im going solo now day may have technology make itevator return controls neutral theyou want give some dual instruc factwings level power back cruisetion later E BEGINNER Want buy trainer ACT ACT II year laterRC Soaring/Blakeslee BEGINNER Hello Can Imy new RCContinued page 49 flyBEGINNER Hello Can fly new trainer hereCrosswind extruded toam cores cut actual INSTRUCTOR Have flown beforeINSTRUCTOR Have flown beforeairfoil cross section Glass skins add about 01 BEGINNER NoBEGINNER Noinches total thickness cant cut foam INSTRUCTOR Sorry Youll need manyINSTRUCTOR Sorry youll need manythat accuracy dont worry about hours dual instruction before can flyhours dual instruction before can flywings cut panel ie multiyour trainer yourselfyour model yourselfsweep-back leading edgeBB join BEGINNER itthat hard toNotto instruc- spray adhesive Dont use epoxy other hard reallyflyBEGINNERaccordingglues since will cutting sanding INSTRUCTOR Yep Take basic turn ex ample have input aileron control tions just few lines Let joints dont want anything solid read youresist direction turn put Instructions fly Crosswind Once wing panels joined use hot some up elevator compensate loss go up pull right stick back lift because lift vector wings isTo go down push right stick forward now tilted respect vertical AndTo turn right push right stick good fliers add rudder compensate ad- right verse yawand great fliers add littleTo turn left posh right stick left power compensate extra drag go faster push left stick forward control inputs To go slower pull left stick back neutralize aileron proper INSTRUCTOR ridiculous let bank angle established continue fly check out BEGINNER No wait in-THE BEST IN SCALE LATNESstruction saysOver 25 Years Service PRECISION INSTRUMENTS'Note Crosswind can flown MILLS METALS BOOKSanyone Youthrough the%fS~sPlans Epoxy Glass Kits COMPLETE CATALOG $200almoststeer itairScale Docanteneasine L. y beginner can fly Crosswind intui-Winners atK a.i5. $400 lOGOs items CejJust way steer car ground itish Magazine Plans 5prmnqf1O OH 41551tivel An experienced RChoweverToledo-Master Interents & mareDUIUIUU 13 32 8562pilotBob will able fly hoursHolman Box 141 San Bernardino CA 92402 4 VINYLWRITE CUSTOM LEITERING Providing elegant time saving economical finishing touch modelers EZ TO APPLY ering comes prespaced prealignedsaving hours cutting fuss Th decals text custom corn uter cut 3M aligning individual letters ese cast vinyl 2 mu thin olors pe styles including Military B k igh NOW AVAILABLE Stencil asColor Outlining Premiumoc Priced right no minimum charge Eg AMA plus number ~PROTh7vE RACKINGAMAYOURE DONE1pack & sample ITS FREE P5ELOFFThECARRIERTAPE1high 2high plus $125P&H orders processed upon recjitSTEP BACK ADMIRE YOUR WORK Call write complete info VIF4YLWEITE CUSTOM LEllERING tom Letter Today 16043 Tulsa Streetj Granada Hills CA 91344--------- VINYLWRITE Way 818 363-7131 Noon 6PM Pacific order CA add tax 186 Model Aviation SPECIALISTS INCUS TOM COX TEE DEE& REED ENGINES 020S 049S 051S 074S & 09S ALL CUS TOM & STOCKPARTS VAILABLE INDIVIDUALLY COMPETITIONACCESSORIES RACING WHEELS KLOTZOIL CARBON FIBER SOLID LINES ALL KINDS OFFUEL TUBING THREEBRANDS OFGLOWPLUGS HA RD-TO-FIND HARD WA RE OLD TIMER SUPPLIES COILS CONDENSERS NGK& STITT SPARK PLUGS SILK8 COLORS QUA LITYDOPEBRUSHES 5& 7LOOP 1/4RUBBER BANDS TRANSISTOR IGNITIONSYSTEMS RESISTOR HIGH TENSION LEADS 1/2A TEXACO PLA YBOYSR KIT 1/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBERPOWERKITS PROPS TISSUEAND OTHER SUPPLIES CYANOACRYLA TES& EPOXIES ORDER BY MAIL OR PHONE 619 728-4365 SORRY NO COD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $300 STOCK ORDERS SHIPPED WITHIN 24 HRS wire straightedge cut out spar box Cut way through wing cutting tool use bent piece / wire wooden handle end wire attached foam-cutter power supply Cutting out box takes about 30 seconds per wing box removed two halves wing remain Frank means spar runs whole length wing core section designs don t case Ii make spar cutout root end coreBB servos mounted wing now time route hot wire small channel halves accept servo wire Now build spars construction % less spruce will serve top bottom spar caps addi tional strength required laminate carbon fiber onto spruce using PlC PlastiStic Terminator uses %2-in thick x -in wide spruce top bot tom 7-mit carbon fiber laminated bot tom both spar caps bottom spar cap has two additional laminates 7-mil carbon spar length 1A spar length Now place foam core bottom core bed wing box space place both top bottom spar caps top spar caps place whatever material intend use shear web Terminator uses six- eight-pounddensity urethane/polyester foam Aircraft Spruce although vertical-grain balsa would work well Mark shear web material along wing upper surface remove sand saw mark Using CyA PlastiStic best glue top bottom spar caps shear web Test fit completed spars wing should flush top bottom both spars completed mark wing rod carrier tubes desired dihedral angle Cut out marks tack glue tubes spars held desired rake dihedral Fill around carrier tubes epoxy mi croballoons wrap whole assembly 17oz Kevlar cloth Using 30-minute epoxy wet out Kevlar epoxy finished spars wings Total time wing construction point should less two hours Finish wings adding alignment rod carriers mounting blocks wing locks end caps etc Now using lightweight spackle Red Devil Time DAP Fast Final care fully fill dips discontinuities core surfaces Some builders squeegee light surface coat thinned spackle entire surface im prove adhesionBB spackle has dried use fine sandpaper 220 grit batten fair wing surfaces completely smooth use epoxy microballoons mix much harder foam will sand evenly Lightweight spackle sands just right adds little GATOR TRANSMITER CASE Sturdy wood/metal construction Waterproof vinyl covered exterior Convoluted foam liner Durable hinges latches withstand rough handling Accomodates single two stick transmitters Protect expensive transunitter.$2495 feather lite GLASS CLOTH 7 oz/sq yd weight close weave makes glass cloth easy filling extremely light finished weight Big 3 sq yd package detailed instructions$895 SOFT-N-SAFE MOUNT new type engine soft mount using special serrated Iso-damp grommets engine always safely retained Veiy effective vibration reduction dramatic decrease engine shake Available vely light machined alum beam mount 60 2/strokes 120 4/strokes Also available alum plate radial mount 60 2/strokes Soft-N-Safe 120 beam mount complete 5 Soft-N-Safe 60 beam mount complete 95 Soft-N-Safe 60 radial mount complete 5 Soft-N-Safe replacement Iso-damp grommets Specify soft firm Pkg 4 295 RADIAL ISO-MOUNTS Conventional plate type mount using four Lord/type Iso-mounts Soft 50 duro yellow firm 60 duro purple Iso-mounts available Optimized lowest vibration transmission airframe 60 Radial Iso-mount complete mount 95 Specify soft 50 duro firm 60 duro Iso-mounts Pkg four 995 5/8 dia x 1/2 long 8-32 female end 8-32 x 1/2 male other end Specify soft 50 duro yellow firm 60 duro purple Include $250/Item UPSFL Residents Add 6% Tax GATOR R/C PRODUCTS 3713 Pompano Dr Pensacola FI32514 904/476-8639 F March 1991 187 OUR RE V-UP IN VENTORY VERA GES 0 VER 9000 PROPS! IMMEDIA TESHIPMENTON WSA/MC Get starting po fmm THIS EXCITING AIRCRAFT WAS DESIGNED BY KIETH RIDER PURCHASED AND RE-ENGINED BY BILL SCHOENFELDT WITH AL MENASCOS SUPER BUCCANEER WITH TONY LeVIER AS PILOT THE FIRECRACKER WAS FLOWN WITH GREAT SUCCESS IN BOTH THE THOMPSON TROPHY AND GREVE AIR RACES WI LLIAMS BROS INC 181 PAWNEE ST SAN MARCOS CA 92069 619 744-3082 DEPT MA weight used non-load-bearing ca pacity Filling fairing critical step getting good-looking wing right Sanding foam apackle much much easier sanding ep oxy glass finished surface minute will save 30 later whole filling sanding process should take few minutes exclusive drying time Now ready vacuum bag Vacuum bagging can get equip ment materials need vacuum bagging less $30 need following vacuum pump compressor old refrigerator will workzero cost done right Vacuum pumps can purchased compa nies denoted VP list belowBB vacuum gauge T-fittings hoseSears sells complete hoses fittings $15 Trac Auto has less VG roll weather-stripping caulkSears again about $3 length 20-in-wide tubular 6-mil poly bag materialwidely available BM 20C per foot Weston Aerodesign Enough 14-mil Mylar sheet make top bottom covers surfaces bagged widely available MS $4 14/40-in-wide ft matcneo rerrormance ysiem TOP PERFORMANCE K&B ENGINES AirplaneMarine K&B FUELS K&B GLOW PLUGS 9 Blends4 Choices Matched Finish System BEST APPEARANCE K&5 FIBERGLASS CLOTHKSEs FILLER K&B SUPER FOXY RESINK&8THINNER K&B SUPER POXY PRIMER t&5 SUPER FOXY PAINT Weston Aerodesign Cut bag material about foot longer wingspan Seal end securely caulk Near end bag punch hole large enough insert bicycle-tube tire stem About 2-in-square piece tube should left stem Remove valve caulk stem side bag Please note good idea ever got Jack Cash Place few paper towels bag allow air flow stem corners bag once vacuum starts build Place strip caulk other end bag dont seal yet wing goes its ready Connect intake line salvaged compressor valve stem Use T-fitting somewhere line connect vacuum gauge assume have wired up tested compressor works reliably Watch out spray oil compressor exhaust line Glassing wings Start cutting two Mylar carrier sheets wing planform plus about A-in overlap Use several pieces masking tape join sheets trailing edges leaving about %2-in gap masking tape side down lay joined Mylar carrier Continued page 192 AbKOMUUISL ChANT Si-LARK ARC PRE-BUILT G SHARK $21495 SEE YOUR HOBBY DEALER FIRST SEND STAMPED #10 ENVELOPE FOR INFO KINGS WAY RIG HOBBY SUPPLY 5559 RECHMOND HOUSTON TX 77056 DEALERS ONLY 1-800-621-7783 1/32 SCALE PLANE TRACKER PILOT GLASSES High impact polycarbonate extra protect ion Dual gradient lens [Mirror Gray] Fit over prescription glasses Hard coated scratch resistance 1 year limited warranty Case Included AVAILABLE IN Clear $1795 Amber $1995 Gray $1995 Mirror Gray $2495 CA Mask Paint Mask Banded Ear Plugs $1695 $2295 $795 L 15 See hobby dealer first doesn have what need order direct SAFETY PLUS P 0 Box 1173 Dept iM Clinton MS 39060 1-800-842-7233 Cont US 601 924-9640 Satialaclion guaranteed Shi ing handling included dd $350 lot CD VISA lMC 188 Model Aviation wraparouna styie eliminates glare angles Blocks 100% harmful UV rays h p Electric F ight Haa Brake nth Lightweight 02 00money back Adjustable switching point guarantee Soidertess tenninat easy hookup ON/OFF Control ler2995 Mom Power save weight 25 Size 22x13x63 efficiency 006V loss Add SICOPo shippiog Califonisosidooisadd 725% 5217 Ta Send Cheek money order High Sky Fotaba eoooootse3929 Kansas St #9 sib 50bSan DiegoCA 92104 sheets flat surface Use carnauba car wax mold release Mylar sheets epoxy resin wont stick Unroll 2-oz glass cloth GC 450 bias over Mylar trim razor Mylar edges again bias going other way get two layers glass Now lay strip glass wing root edge Mylar out about six inches Lay other Out about three inches extra pieces will add strength wing root Cloth lay-up schedulesie weight type cloth num ber plieswill vary glider glider builder builder probably biggest trick baggingBB Put piece poly film un der Mylars keep resin off table Cut 1- 2-in-wide strip 2- 3-oz glass cloth long enough reach wing root way around tip Mix small amount same epoxy will use lamination acid brush attach strip leading edge foam core around tip Use little resin possible get glass wet resin needs tacky stage before going next step leading edge piece doesnt move around Spread laminating epoxy using 3-in foam roller over glass laid top Mylar sheets use West System 205 epoxy 206 hardener WS Other resins denoted ER belowBB highly recommend adding white pigment WP laminating epoxy pigment will give very nice color finished wing eliminate need paint glass wet lay super-absorbent paper towels top whole lay-up Use dry roller roll towels onto wet glass towels will absorb excess resin Let sit minute peel off dis card Some builders apply resin cloth layer squeegee off excess using paper towel trickBB Now take wing core position verti cally its trailing edge aligned between two sheets Mylar Fold sheets Mylar gether around core Set assembly bottom foam core bed correct position Use pieces masking tape end keep things shifting Slide whole thing vac uum bag seal end bag draw about five inches vacuum gauge Smooth out wrinkles make sure wing perfectly flat draw about 15 inches anything over 3 4 inches seems trick bag has slow leak 15 inches will show Note Some builders put wing bag placing bottom core bed between bag table Under light vacuum wing checked make sure lies true straight bed wing warped twisted stage itll crooked forever fidl vacuum can pulled Needless say bed must perfectly flat surfaceBB bag leaks check seals end around valve stem bag still leaks loses vacuum within few minutes probably pinholes bag material Pinholes almost impossible find left two options Either start over again another bag best choice run pump continu ously bums out compressors requires frequent attendance acquire com pressor try get large vacuum reservoir possible bigger reservoir longer can hold vacuum against slow leak Once get vacuum steady walk away dont bother anything least eight hours After eight hours epoxy will have set assembly can removed bag re move Mylar wing least 24 hours dont exert pressure directly against surface Until epoxy cures up hard very easy dimple wing sur face After week cure surface very ding resistant Peel Mylars carefully wing Trim sand flash edges have pigmented resin unless add ing flaps and/or ailerons wing finished add flaps/ailerons cut along hinge line razor metal straightedge Aluminum Sponsored byTri-Valley RIC Flyers Rosemount MN SUNBIRD SENSATION WITH STYLE Sunbird combines eye opening performance truly distinctive styling terrific flying design Whether choose 40 size Sunbird 10 Sunbird Jr youll find Sunbird perfect sport plane fl PRECISION PRODUCTS INC 714 592-5144 510 E Arrow Highway San Dimas CA 91773 r213x AIR WOLF EPOXY FIBERGLASS FUSELAGES TAKES MOST 50-60 MECHANICS OTHER MODELS AVAILABLE LARRY JOLLY MODEL PRODUCTS $21000 5501 WCOMO SANTA ANA CALIFORNIA 92703 714 826-6861 9OfDAIPOPAT PLOTS Sede ng rting Ssvices 3 Views D-TECI4 SYSTEMS Catdog $tOO 62916 8th Annual Swap Meet Sat Feb 16 1991 400 3 Convention Rooms Big INN 494 & Cedar Ave S Hwy 77 Bloomington MN Contact 612-454-5672 Rubber & Engine Power Free Flight Display Control Line Electric Power RIC Airplanes new illuatreted 32 page tabloId size catalog us Canada $100 Foreigh *300 Penn Valley Hobby center 837-A W Main St Lansdale PA 19446 215- 3680170 arrow shaft tubes can epoxied leading edges surfaces add stiffness Use rattail chain-saw file suitable diameter file semicircular groove both wings trailing edge surfaces leading edge groove should just large enough accommodate tube necessary tubes may telescoped using graduated diameters closely match taper wing Glue tube leading edge sur face using 5-minute epoxy sure sur face true glue curing Control sur faces can attached wing using arrowshaft hinges tape prefer tape because quicker lighter generates no stress points wing because control surfaces can re moved time repair painting Safety note extremely careful han dling trailing edges surface can very sharp will cut like razor warning Ill wager will cut yourself first time Once surfaces attached wing ready go Perhaps youll want prime paint competition Sailplane pigmented epoxy gives very good finish Priming painting very very time-consuming adds up 15% weight wing Dont unless just have elect paint few words caution Most paint solvents will eat styrene foam very quickly Dont rub solvent wing sur face dont gloss thick coats paint until surface well filled two things can happen both bad First solvent will seep through pinholes surface cause bubbles paint second solvent will dissolve thin foam trailing edge thereby causing glass skins separate Its pretty sight whole construction process takes two six hours actual labor two wing halves depending size complexity wing about one-third one-half time required other construction meth od actual cost materials about 25% cost construction uses balsa wings compare very favorably weight other construction methods much stronger stiffer set Two Meter wings weighs about 10 oz Terminator wings weigh 20 oz finished wings can also take beating lost Terminator #2 about 1000 ft according Casio altitude watch inside think control cable parted plane made vertical dive warp speed recenfly-plowed field planting itself vertically up its wing rods mud damage limited bent wing rod loosened empennage minor gravel rash Re pairs took less 30 minutes flying next day building wings other method Final hint Kitplanes magazine publication builders experimental aircraft other loo nies usually lists fair number suppliers composite materials tools full good ideas too will also get some valuable tips reading articles Model Aviation magazine Pylon Racers some great painting Free Flighters use radical construction methods everyone interested aerodynamics control conclude article Frank listed sources bagging supplies Since writing Frank has gone supplies business himself broad line includes everything needed bagging attractive prices too putting bagging seminars shop Thank Frank Weston valuable article Send large SASE list Franks sup plies also contains full line Sailplanes including Two Meter SAM-I 100-in Merlin 138-in Magic 160-in-span Termina tor am considering putting together complete list ing sources Sailplane building materials parts kits etc What think E Jr FF Champs/Grasmeyer Continued page 121 mention driving steep curving mountain roads few guardrails Still managed arrive ample time scheduled 700 am first round orga nizers forced move FlA Thurs day FiC FiB Friday Satur day Leaving field late morning stopped briefly hotel ate lunch university Mostar Apparently col lege food bad everywhere After lunch two young Yugoslavian wom en graduates university took Gaglianos Bob Sifleet Mike Keller tour renowned World War II merug 7d 4 ~ Podaogn Inc Only ce-tit led checks money ordem accepted Minimum order S12OOtortlmepackagesotd Pomerpolests3Soperoackage -I- $150 shipping handling CT residento add 75% sales tao Prices suhiect change inithout notice DEALER INQUIRIES INVITED Fm bother intorrnaljon dealer prices send SASE tousiness Card SERMO RIC SNAP CONNECTORS Inc Cedar Corners Station Box 16787 Stamford CT 06905 203 322-6294 THE LEADER IN COM PETITION NEW p DIA 12 13 14 15 16 NEW HIGH TECH AIRFOIL SECTION 10T020% INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCH 5/a34 634 72833456 833/a4568 8/a4568/a7 94566Va77Ia 10456B/a7 106W8W 10SEW 114677Ia775/a8 ii SW 11 6EW* ll/a 67 12 4W 12 5W 12 56 13 56 14 56 15 56 16 4N 16 678 PROPELLERS 4 CYCLE SERIES 100 THP DESIGN TAILORED HELICAL PITCH DEVELOPEDTOGIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALL THE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW PITCH THP 66 77 Ia 8 677/a 8 677/a 8 67 678 March 1991 193 NEW p FINGER SAVER INC P RESENTS Patented Safety Retainer No damaged fingers Eliminates need helper Allows complete freedom START & ADJUST plane ALONE High quality steel Lightweight Compact MUST flier Dealers invited NOW ONLY $1995 s&h FL res add 7% tax FINGER SAVER INC PO Box 1416 St Petersburg FL 33731 PRO SERIES 3 RO PYLON RACING SERIES 500 DIAPITCH 75N5/aN 8I6Ia7V,75/a8 SERIES 400C 8a/66a1777 977Va7/a W WIDE BLADE EW EXTRA WIDE N NARROW
Edition: Model Aviation - 1991/03
Page Numbers: 48, 49, 186, 187, 188, 192, 193
VIKING CUP F3F Race1990 F3F FAI provisional class model Glider Slope Rac ing contrast normal US practice F3F ra ces plane time against clock Eu ropeans decided racing four planes time too expensive Americans other hand prefer daredevil mano-a-mano damn collisions heat-racing style competition would interesting some top racers would go Europe compete F3F Theres no reason shouldnt well because best racers probably just fast may seem bit tame comparison pressure ex citement still Since its likely FAI will adopt both types racing aspirants World Class slope competition will undoubtedly doing F3F Danish friend Preben Norholm has long-time promoter F3F fact Danes have dominated F3F years Recently Brit ish Germans have gotten very competitive what Preben others sport want see iendly international meetings tight competition between individuals coun tries Preben attended 1990 Viking Cup held central England last October kind enough send cs following report eight nations 16 teams 49 competi tOrs biggest international F3F contest ever perfect weather made greatest F3F event ever too bad no Amer ican competitors Mr Dale Willoughby ever came way Guam watch contest F3F advance over Europe 1991 likely see three international events Prague England Den mark meet again great Viking Cup Race 1992 likely Norway Nic Wright did again very precise consistent flying just miracle man transmitter hand resistance way 10th final round untilnow rather unknown Kowalski brothers Co logne Germany Kowalski brothers placed first second big Okioberfest F3B con test Munich just two weeks before always good strong wind mostly between 10 20 in/sec 22 44 mph Buxton slopes fabulous No raln except during practice round during wind exceeded upper limit 25 in/sec 55 mph Thats what call storm too cold taking time year account mostly tween 500 600 F results no less spectacular Before contest watched two con test flights below 40 seconds time saw Nic Wright earn 831 points discard round doing 3973 seconds because Peter Kowal ski made unbelievable 3303-second run same round Both brothers have wonderfully aggressive flying style fly same F3B models seem turn dime give SC change use Quabeck 10/90 wing airfoils 22% flaps flaps allerons de flected some 3 4 mm %42 down ward full Up elevator course record-breaking flights occasional wind its strong est combined big thermal Also top pilots turned 45- 50-second flight because did something wrong because fly during less favorable con ditions After 10 rounds evens out Two teams catne Germany four England Norway Iceland N Ireland two Denmark Representatives two new countries Austria France showed up came learnlike Ger mans did Denmark last year certainly did flying Team G-S together two Germans father son Horzitz never learned team got name did place too badly thanks son Armin Munich Germanys top F3B pilots 48 Model Aviation Radio Control Soaring Byron Blakeslee 3134 N Winnebafo Dr 35 Iceland population just over 200000 competes internationally F3F class Heres team competed England beautiful gliders national colors left Rafn Thorarensen Bodvar Gudmundsson Frimann Frimannason two three-man Danish teams viking cup Danish pianes typically use twist-wing roil control Viking Cup slope races England Peter Kowaiski Germany set new F3F speed record placed third overall Gilder de signed F3B competition 100-in span V-Tail Peters brother Klaus sec ond wIth Nic Wright Britain winning second time row Frank Westons 160-In wing span Termina tor Frank gives detailed description vacuum bag glider wings co lumn pupil Raif Decker Through first nine rounds Nic Peter very close nobody could know would wineven Nic mostly leading position last round Peter fly ing before Nic knew make record flight get ahead Nic too much nerves After two cuts A-base turn simply gave up completed flight inverted Second place safe thought did matter brother Klaus made perfect flight last round crept few points ahead him way three days after contest Nics wife Pam gave birth beautiful boy James So dont expect 21st century come much easier F3F pilots planet Thanks Preben Norholm fascinating report Making vacuum-bagged wings Im going de vote remainder months column single subject vacuum bagging method making Glider wings has around over 10 years hasnt become very popularuntil re cently see more builders go ing technique think its time pass along some detailed information Bagging still fairly high-tech process realize experienced builders will feel ready try think beginning Sailplaners will find interesting process ap preciate benefits file information away future reference bagging expert Frank Weston may recall Franks description Terminator last Augusts column Magic Januarys Franks article reprinted below originally ap peared Capital Area Soaring Associations newsletter ably edited Gus Pelasus Vacuum pumps available Frank among others about $120 Franks comment about making pump zero cost done right certainly piqued interest Next month Ill describe made pumpnot exactly nothing pretty cheap Now over Frank Jet Fuel Tanks So Inexpensive Theyre Going Fast Somebodys finally come up ducted fan fuel tank costs less Boeing 747 Whats 11-ounce Sullivan fuel tank #380 has advantages higher priced tanks well some sought-after features its own instance its seamless greater protection against leaks its reversible left nt tank Only /16 thick fits around virtually 4 6 diameter fan units because uses standard Sullivan hardware replacement parts readily available Fully equipped glow fuel parts simple kit enables convert gasoline use easily vent tube bubble also gives maximum capacity longer flights between re-fuelings Fly down dealer soon ask about Sullivan jet fuel tanks prices PRODUCI down earth weve made easier PD Box 5166 Baltimore MD 21224 ever take off Getting Better Ideas Off Ground learned lot designing building Termi nator much what learned can result lighter stronger stiffer cheaper quicker building no matter what project Termina tors wings biggest departure con ventional methods lets discuss build Foam Wing Cores Wing construction starts cutting cores extruded foam blank cutting foam cores nothing new wont get other say cost Gentle Lady kit can buy equipment necessary cut own cores Call Nor-Ray Products see Aircraft Spruce Specialty Company catalog comprehensive list sources materials tools provided end article Styrene foam comes two major varieties extruded expanded bead Expanded bead foam kind found soda coolers typ ical foam-and-balsa kits Expanded bead foam light because formed discrete separate expanded beads cant easily sanded ab sorbs resin between beads fragile respects Extruded foam homogene ous easily sanded absorbs little resin weighs costs little expanded bead differentials insignificant purposes Because extruded foam workable absorbs less resin foam used Gliders Extruded foam panels 4 ft x 8 ft x 15 can obtained VIeck Company Balti Ask Dow Greyboard weighs 15 pounds per cubic foot Less $10 worth foam will build two Terminators plus Two terContinued page 186 March 1991 49 FOAMAIREIHAIrILK 10 SPAN 30-33 LBS 50-7500 POWER 74 IN WING SPAN 6-7 LBS 45-60 POWER 10 SPAN 19-22 LBS 35-42CC POWER 5-10 LB PAYLOAD OPTIONAL SPREADER4 OH PLY FOAM AND BALSA WOODCHOOSE 3 OR 4 OH SLOW AND STABLE KIT $26995 SPDKiT$1995 T $69953 CH $14995 4 CH $16495 SEND $100 FOR CATALOGRT 1 NEODESIIA KS 66757 OF SAC KITS AND ACC325-2821 FREE SHIPPING ON KIT ORDERSseoASTERCARD could have revolutionized way begin-turn until ready come out youof dual instruction ner learns Radio Control flying dia-apply opposite aileron opposite rudderINSTRUCTOR Are saying e follows strictly fiction some-against proverse yaw relax up el-BEGINNER Yes Im going solo now day may have technology make itevator return controls neutral theyou want give some dual instruc factwings level power back cruisetion later E BEGINNER Want buy trainer ACT ACT II year laterRC Soaring/Blakeslee BEGINNER Hello Can Imy new RCContinued page 49 flyBEGINNER Hello Can fly new trainer hereCrosswind extruded toam cores cut actual INSTRUCTOR Have flown beforeINSTRUCTOR Have flown beforeairfoil cross section Glass skins add about 01 BEGINNER NoBEGINNER Noinches total thickness cant cut foam INSTRUCTOR Sorry Youll need manyINSTRUCTOR Sorry youll need manythat accuracy dont worry about hours dual instruction before can flyhours dual instruction before can flywings cut panel ie multiyour trainer yourselfyour model yourselfsweep-back leading edgeBB join BEGINNER itthat hard toNotto instruc- spray adhesive Dont use epoxy other hard reallyflyBEGINNERaccordingglues since will cutting sanding INSTRUCTOR Yep Take basic turn ex ample have input aileron control tions just few lines Let joints dont want anything solid read youresist direction turn put Instructions fly Crosswind Once wing panels joined use hot some up elevator compensate loss go up pull right stick back lift because lift vector wings isTo go down push right stick forward now tilted respect vertical AndTo turn right push right stick good fliers add rudder compensate ad- right verse yawand great fliers add littleTo turn left posh right stick left power compensate extra drag go faster push left stick forward control inputs To go slower pull left stick back neutralize aileron proper INSTRUCTOR ridiculous let bank angle established continue fly check out BEGINNER No wait in-THE BEST IN SCALE LATNESstruction saysOver 25 Years Service PRECISION INSTRUMENTS'Note Crosswind can flown MILLS METALS BOOKSanyone Youthrough the%fS~sPlans Epoxy Glass Kits COMPLETE CATALOG $200almoststeer itairScale Docanteneasine L. y beginner can fly Crosswind intui-Winners atK a.i5. $400 lOGOs items CejJust way steer car ground itish Magazine Plans 5prmnqf1O OH 41551tivel An experienced RChoweverToledo-Master Interents & mareDUIUIUU 13 32 8562pilotBob will able fly hoursHolman Box 141 San Bernardino CA 92402 4 VINYLWRITE CUSTOM LEITERING Providing elegant time saving economical finishing touch modelers EZ TO APPLY ering comes prespaced prealignedsaving hours cutting fuss Th decals text custom corn uter cut 3M aligning individual letters ese cast vinyl 2 mu thin olors pe styles including Military B k igh NOW AVAILABLE Stencil asColor Outlining Premiumoc Priced right no minimum charge Eg AMA plus number ~PROTh7vE RACKINGAMAYOURE DONE1pack & sample ITS FREE P5ELOFFThECARRIERTAPE1high 2high plus $125P&H orders processed upon recjitSTEP BACK ADMIRE YOUR WORK Call write complete info VIF4YLWEITE CUSTOM LEllERING tom Letter Today 16043 Tulsa Streetj Granada Hills CA 91344--------- VINYLWRITE Way 818 363-7131 Noon 6PM Pacific order CA add tax 186 Model Aviation SPECIALISTS INCUS TOM COX TEE DEE& REED ENGINES 020S 049S 051S 074S & 09S ALL CUS TOM & STOCKPARTS VAILABLE INDIVIDUALLY COMPETITIONACCESSORIES RACING WHEELS KLOTZOIL CARBON FIBER SOLID LINES ALL KINDS OFFUEL TUBING THREEBRANDS OFGLOWPLUGS HA RD-TO-FIND HARD WA RE OLD TIMER SUPPLIES COILS CONDENSERS NGK& STITT SPARK PLUGS SILK8 COLORS QUA LITYDOPEBRUSHES 5& 7LOOP 1/4RUBBER BANDS TRANSISTOR IGNITIONSYSTEMS RESISTOR HIGH TENSION LEADS 1/2A TEXACO PLA YBOYSR KIT 1/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBERPOWERKITS PROPS TISSUEAND OTHER SUPPLIES CYANOACRYLA TES& EPOXIES ORDER BY MAIL OR PHONE 619 728-4365 SORRY NO COD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $300 STOCK ORDERS SHIPPED WITHIN 24 HRS wire straightedge cut out spar box Cut way through wing cutting tool use bent piece / wire wooden handle end wire attached foam-cutter power supply Cutting out box takes about 30 seconds per wing box removed two halves wing remain Frank means spar runs whole length wing core section designs don t case Ii make spar cutout root end coreBB servos mounted wing now time route hot wire small channel halves accept servo wire Now build spars construction % less spruce will serve top bottom spar caps addi tional strength required laminate carbon fiber onto spruce using PlC PlastiStic Terminator uses %2-in thick x -in wide spruce top bot tom 7-mit carbon fiber laminated bot tom both spar caps bottom spar cap has two additional laminates 7-mil carbon spar length 1A spar length Now place foam core bottom core bed wing box space place both top bottom spar caps top spar caps place whatever material intend use shear web Terminator uses six- eight-pounddensity urethane/polyester foam Aircraft Spruce although vertical-grain balsa would work well Mark shear web material along wing upper surface remove sand saw mark Using CyA PlastiStic best glue top bottom spar caps shear web Test fit completed spars wing should flush top bottom both spars completed mark wing rod carrier tubes desired dihedral angle Cut out marks tack glue tubes spars held desired rake dihedral Fill around carrier tubes epoxy mi croballoons wrap whole assembly 17oz Kevlar cloth Using 30-minute epoxy wet out Kevlar epoxy finished spars wings Total time wing construction point should less two hours Finish wings adding alignment rod carriers mounting blocks wing locks end caps etc Now using lightweight spackle Red Devil Time DAP Fast Final care fully fill dips discontinuities core surfaces Some builders squeegee light surface coat thinned spackle entire surface im prove adhesionBB spackle has dried use fine sandpaper 220 grit batten fair wing surfaces completely smooth use epoxy microballoons mix much harder foam will sand evenly Lightweight spackle sands just right adds little GATOR TRANSMITER CASE Sturdy wood/metal construction Waterproof vinyl covered exterior Convoluted foam liner Durable hinges latches withstand rough handling Accomodates single two stick transmitters Protect expensive transunitter.$2495 feather lite GLASS CLOTH 7 oz/sq yd weight close weave makes glass cloth easy filling extremely light finished weight Big 3 sq yd package detailed instructions$895 SOFT-N-SAFE MOUNT new type engine soft mount using special serrated Iso-damp grommets engine always safely retained Veiy effective vibration reduction dramatic decrease engine shake Available vely light machined alum beam mount 60 2/strokes 120 4/strokes Also available alum plate radial mount 60 2/strokes Soft-N-Safe 120 beam mount complete 5 Soft-N-Safe 60 beam mount complete 95 Soft-N-Safe 60 radial mount complete 5 Soft-N-Safe replacement Iso-damp grommets Specify soft firm Pkg 4 295 RADIAL ISO-MOUNTS Conventional plate type mount using four Lord/type Iso-mounts Soft 50 duro yellow firm 60 duro purple Iso-mounts available Optimized lowest vibration transmission airframe 60 Radial Iso-mount complete mount 95 Specify soft 50 duro firm 60 duro Iso-mounts Pkg four 995 5/8 dia x 1/2 long 8-32 female end 8-32 x 1/2 male other end Specify soft 50 duro yellow firm 60 duro purple Include $250/Item UPSFL Residents Add 6% Tax GATOR R/C PRODUCTS 3713 Pompano Dr Pensacola FI32514 904/476-8639 F March 1991 187 OUR RE V-UP IN VENTORY VERA GES 0 VER 9000 PROPS! IMMEDIA TESHIPMENTON WSA/MC Get starting po fmm THIS EXCITING AIRCRAFT WAS DESIGNED BY KIETH RIDER PURCHASED AND RE-ENGINED BY BILL SCHOENFELDT WITH AL MENASCOS SUPER BUCCANEER WITH TONY LeVIER AS PILOT THE FIRECRACKER WAS FLOWN WITH GREAT SUCCESS IN BOTH THE THOMPSON TROPHY AND GREVE AIR RACES WI LLIAMS BROS INC 181 PAWNEE ST SAN MARCOS CA 92069 619 744-3082 DEPT MA weight used non-load-bearing ca pacity Filling fairing critical step getting good-looking wing right Sanding foam apackle much much easier sanding ep oxy glass finished surface minute will save 30 later whole filling sanding process should take few minutes exclusive drying time Now ready vacuum bag Vacuum bagging can get equip ment materials need vacuum bagging less $30 need following vacuum pump compressor old refrigerator will workzero cost done right Vacuum pumps can purchased compa nies denoted VP list belowBB vacuum gauge T-fittings hoseSears sells complete hoses fittings $15 Trac Auto has less VG roll weather-stripping caulkSears again about $3 length 20-in-wide tubular 6-mil poly bag materialwidely available BM 20C per foot Weston Aerodesign Enough 14-mil Mylar sheet make top bottom covers surfaces bagged widely available MS $4 14/40-in-wide ft matcneo rerrormance ysiem TOP PERFORMANCE K&B ENGINES AirplaneMarine K&B FUELS K&B GLOW PLUGS 9 Blends4 Choices Matched Finish System BEST APPEARANCE K&5 FIBERGLASS CLOTHKSEs FILLER K&B SUPER FOXY RESINK&8THINNER K&B SUPER POXY PRIMER t&5 SUPER FOXY PAINT Weston Aerodesign Cut bag material about foot longer wingspan Seal end securely caulk Near end bag punch hole large enough insert bicycle-tube tire stem About 2-in-square piece tube should left stem Remove valve caulk stem side bag Please note good idea ever got Jack Cash Place few paper towels bag allow air flow stem corners bag once vacuum starts build Place strip caulk other end bag dont seal yet wing goes its ready Connect intake line salvaged compressor valve stem Use T-fitting somewhere line connect vacuum gauge assume have wired up tested compressor works reliably Watch out spray oil compressor exhaust line Glassing wings Start cutting two Mylar carrier sheets wing planform plus about A-in overlap Use several pieces masking tape join sheets trailing edges leaving about %2-in gap masking tape side down lay joined Mylar carrier Continued page 192 AbKOMUUISL ChANT Si-LARK ARC PRE-BUILT G SHARK $21495 SEE YOUR HOBBY DEALER FIRST SEND STAMPED #10 ENVELOPE FOR INFO KINGS WAY RIG HOBBY SUPPLY 5559 RECHMOND HOUSTON TX 77056 DEALERS ONLY 1-800-621-7783 1/32 SCALE PLANE TRACKER PILOT GLASSES High impact polycarbonate extra protect ion Dual gradient lens [Mirror Gray] Fit over prescription glasses Hard coated scratch resistance 1 year limited warranty Case Included AVAILABLE IN Clear $1795 Amber $1995 Gray $1995 Mirror Gray $2495 CA Mask Paint Mask Banded Ear Plugs $1695 $2295 $795 L 15 See hobby dealer first doesn have what need order direct SAFETY PLUS P 0 Box 1173 Dept iM Clinton MS 39060 1-800-842-7233 Cont US 601 924-9640 Satialaclion guaranteed Shi ing handling included dd $350 lot CD VISA lMC 188 Model Aviation wraparouna styie eliminates glare angles Blocks 100% harmful UV rays h p Electric F ight Haa Brake nth Lightweight 02 00money back Adjustable switching point guarantee Soidertess tenninat easy hookup ON/OFF Control ler2995 Mom Power save weight 25 Size 22x13x63 efficiency 006V loss Add SICOPo shippiog Califonisosidooisadd 725% 5217 Ta Send Cheek money order High Sky Fotaba eoooootse3929 Kansas St #9 sib 50bSan DiegoCA 92104 sheets flat surface Use carnauba car wax mold release Mylar sheets epoxy resin wont stick Unroll 2-oz glass cloth GC 450 bias over Mylar trim razor Mylar edges again bias going other way get two layers glass Now lay strip glass wing root edge Mylar out about six inches Lay other Out about three inches extra pieces will add strength wing root Cloth lay-up schedulesie weight type cloth num ber plieswill vary glider glider builder builder probably biggest trick baggingBB Put piece poly film un der Mylars keep resin off table Cut 1- 2-in-wide strip 2- 3-oz glass cloth long enough reach wing root way around tip Mix small amount same epoxy will use lamination acid brush attach strip leading edge foam core around tip Use little resin possible get glass wet resin needs tacky stage before going next step leading edge piece doesnt move around Spread laminating epoxy using 3-in foam roller over glass laid top Mylar sheets use West System 205 epoxy 206 hardener WS Other resins denoted ER belowBB highly recommend adding white pigment WP laminating epoxy pigment will give very nice color finished wing eliminate need paint glass wet lay super-absorbent paper towels top whole lay-up Use dry roller roll towels onto wet glass towels will absorb excess resin Let sit minute peel off dis card Some builders apply resin cloth layer squeegee off excess using paper towel trickBB Now take wing core position verti cally its trailing edge aligned between two sheets Mylar Fold sheets Mylar gether around core Set assembly bottom foam core bed correct position Use pieces masking tape end keep things shifting Slide whole thing vac uum bag seal end bag draw about five inches vacuum gauge Smooth out wrinkles make sure wing perfectly flat draw about 15 inches anything over 3 4 inches seems trick bag has slow leak 15 inches will show Note Some builders put wing bag placing bottom core bed between bag table Under light vacuum wing checked make sure lies true straight bed wing warped twisted stage itll crooked forever fidl vacuum can pulled Needless say bed must perfectly flat surfaceBB bag leaks check seals end around valve stem bag still leaks loses vacuum within few minutes probably pinholes bag material Pinholes almost impossible find left two options Either start over again another bag best choice run pump continu ously bums out compressors requires frequent attendance acquire com pressor try get large vacuum reservoir possible bigger reservoir longer can hold vacuum against slow leak Once get vacuum steady walk away dont bother anything least eight hours After eight hours epoxy will have set assembly can removed bag re move Mylar wing least 24 hours dont exert pressure directly against surface Until epoxy cures up hard very easy dimple wing sur face After week cure surface very ding resistant Peel Mylars carefully wing Trim sand flash edges have pigmented resin unless add ing flaps and/or ailerons wing finished add flaps/ailerons cut along hinge line razor metal straightedge Aluminum Sponsored byTri-Valley RIC Flyers Rosemount MN SUNBIRD SENSATION WITH STYLE Sunbird combines eye opening performance truly distinctive styling terrific flying design Whether choose 40 size Sunbird 10 Sunbird Jr youll find Sunbird perfect sport plane fl PRECISION PRODUCTS INC 714 592-5144 510 E Arrow Highway San Dimas CA 91773 r213x AIR WOLF EPOXY FIBERGLASS FUSELAGES TAKES MOST 50-60 MECHANICS OTHER MODELS AVAILABLE LARRY JOLLY MODEL PRODUCTS $21000 5501 WCOMO SANTA ANA CALIFORNIA 92703 714 826-6861 9OfDAIPOPAT PLOTS Sede ng rting Ssvices 3 Views D-TECI4 SYSTEMS Catdog $tOO 62916 8th Annual Swap Meet Sat Feb 16 1991 400 3 Convention Rooms Big INN 494 & Cedar Ave S Hwy 77 Bloomington MN Contact 612-454-5672 Rubber & Engine Power Free Flight Display Control Line Electric Power RIC Airplanes new illuatreted 32 page tabloId size catalog us Canada $100 Foreigh *300 Penn Valley Hobby center 837-A W Main St Lansdale PA 19446 215- 3680170 arrow shaft tubes can epoxied leading edges surfaces add stiffness Use rattail chain-saw file suitable diameter file semicircular groove both wings trailing edge surfaces leading edge groove should just large enough accommodate tube necessary tubes may telescoped using graduated diameters closely match taper wing Glue tube leading edge sur face using 5-minute epoxy sure sur face true glue curing Control sur faces can attached wing using arrowshaft hinges tape prefer tape because quicker lighter generates no stress points wing because control surfaces can re moved time repair painting Safety note extremely careful han dling trailing edges surface can very sharp will cut like razor warning Ill wager will cut yourself first time Once surfaces attached wing ready go Perhaps youll want prime paint competition Sailplane pigmented epoxy gives very good finish Priming painting very very time-consuming adds up 15% weight wing Dont unless just have elect paint few words caution Most paint solvents will eat styrene foam very quickly Dont rub solvent wing sur face dont gloss thick coats paint until surface well filled two things can happen both bad First solvent will seep through pinholes surface cause bubbles paint second solvent will dissolve thin foam trailing edge thereby causing glass skins separate Its pretty sight whole construction process takes two six hours actual labor two wing halves depending size complexity wing about one-third one-half time required other construction meth od actual cost materials about 25% cost construction uses balsa wings compare very favorably weight other construction methods much stronger stiffer set Two Meter wings weighs about 10 oz Terminator wings weigh 20 oz finished wings can also take beating lost Terminator #2 about 1000 ft according Casio altitude watch inside think control cable parted plane made vertical dive warp speed recenfly-plowed field planting itself vertically up its wing rods mud damage limited bent wing rod loosened empennage minor gravel rash Re pairs took less 30 minutes flying next day building wings other method Final hint Kitplanes magazine publication builders experimental aircraft other loo nies usually lists fair number suppliers composite materials tools full good ideas too will also get some valuable tips reading articles Model Aviation magazine Pylon Racers some great painting Free Flighters use radical construction methods everyone interested aerodynamics control conclude article Frank listed sources bagging supplies Since writing Frank has gone supplies business himself broad line includes everything needed bagging attractive prices too putting bagging seminars shop Thank Frank Weston valuable article Send large SASE list Franks sup plies also contains full line Sailplanes including Two Meter SAM-I 100-in Merlin 138-in Magic 160-in-span Termina tor am considering putting together complete list ing sources Sailplane building materials parts kits etc What think E Jr FF Champs/Grasmeyer Continued page 121 mention driving steep curving mountain roads few guardrails Still managed arrive ample time scheduled 700 am first round orga nizers forced move FlA Thurs day FiC FiB Friday Satur day Leaving field late morning stopped briefly hotel ate lunch university Mostar Apparently col lege food bad everywhere After lunch two young Yugoslavian wom en graduates university took Gaglianos Bob Sifleet Mike Keller tour renowned World War II merug 7d 4 ~ Podaogn Inc Only ce-tit led checks money ordem accepted Minimum order S12OOtortlmepackagesotd Pomerpolests3Soperoackage -I- $150 shipping handling CT residento add 75% sales tao Prices suhiect change inithout notice DEALER INQUIRIES INVITED Fm bother intorrnaljon dealer prices send SASE tousiness Card SERMO RIC SNAP CONNECTORS Inc Cedar Corners Station Box 16787 Stamford CT 06905 203 322-6294 THE LEADER IN COM PETITION NEW p DIA 12 13 14 15 16 NEW HIGH TECH AIRFOIL SECTION 10T020% INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCH 5/a34 634 72833456 833/a4568 8/a4568/a7 94566Va77Ia 10456B/a7 106W8W 10SEW 114677Ia775/a8 ii SW 11 6EW* ll/a 67 12 4W 12 5W 12 56 13 56 14 56 15 56 16 4N 16 678 PROPELLERS 4 CYCLE SERIES 100 THP DESIGN TAILORED HELICAL PITCH DEVELOPEDTOGIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALL THE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW PITCH THP 66 77 Ia 8 677/a 8 677/a 8 67 678 March 1991 193 NEW p FINGER SAVER INC P RESENTS Patented Safety Retainer No damaged fingers Eliminates need helper Allows complete freedom START & ADJUST plane ALONE High quality steel Lightweight Compact MUST flier Dealers invited NOW ONLY $1995 s&h FL res add 7% tax FINGER SAVER INC PO Box 1416 St Petersburg FL 33731 PRO SERIES 3 RO PYLON RACING SERIES 500 DIAPITCH 75N5/aN 8I6Ia7V,75/a8 SERIES 400C 8a/66a1777 977Va7/a W WIDE BLADE EW EXTRA WIDE N NARROW
Edition: Model Aviation - 1991/03
Page Numbers: 48, 49, 186, 187, 188, 192, 193
VIKING CUP F3F Race1990 F3F FAI provisional class model Glider Slope Rac ing contrast normal US practice F3F ra ces plane time against clock Eu ropeans decided racing four planes time too expensive Americans other hand prefer daredevil mano-a-mano damn collisions heat-racing style competition would interesting some top racers would go Europe compete F3F Theres no reason shouldnt well because best racers probably just fast may seem bit tame comparison pressure ex citement still Since its likely FAI will adopt both types racing aspirants World Class slope competition will undoubtedly doing F3F Danish friend Preben Norholm has long-time promoter F3F fact Danes have dominated F3F years Recently Brit ish Germans have gotten very competitive what Preben others sport want see iendly international meetings tight competition between individuals coun tries Preben attended 1990 Viking Cup held central England last October kind enough send cs following report eight nations 16 teams 49 competi tOrs biggest international F3F contest ever perfect weather made greatest F3F event ever too bad no Amer ican competitors Mr Dale Willoughby ever came way Guam watch contest F3F advance over Europe 1991 likely see three international events Prague England Den mark meet again great Viking Cup Race 1992 likely Norway Nic Wright did again very precise consistent flying just miracle man transmitter hand resistance way 10th final round untilnow rather unknown Kowalski brothers Co logne Germany Kowalski brothers placed first second big Okioberfest F3B con test Munich just two weeks before always good strong wind mostly between 10 20 in/sec 22 44 mph Buxton slopes fabulous No raln except during practice round during wind exceeded upper limit 25 in/sec 55 mph Thats what call storm too cold taking time year account mostly tween 500 600 F results no less spectacular Before contest watched two con test flights below 40 seconds time saw Nic Wright earn 831 points discard round doing 3973 seconds because Peter Kowal ski made unbelievable 3303-second run same round Both brothers have wonderfully aggressive flying style fly same F3B models seem turn dime give SC change use Quabeck 10/90 wing airfoils 22% flaps flaps allerons de flected some 3 4 mm %42 down ward full Up elevator course record-breaking flights occasional wind its strong est combined big thermal Also top pilots turned 45- 50-second flight because did something wrong because fly during less favorable con ditions After 10 rounds evens out Two teams catne Germany four England Norway Iceland N Ireland two Denmark Representatives two new countries Austria France showed up came learnlike Ger mans did Denmark last year certainly did flying Team G-S together two Germans father son Horzitz never learned team got name did place too badly thanks son Armin Munich Germanys top F3B pilots 48 Model Aviation Radio Control Soaring Byron Blakeslee 3134 N Winnebafo Dr 35 Iceland population just over 200000 competes internationally F3F class Heres team competed England beautiful gliders national colors left Rafn Thorarensen Bodvar Gudmundsson Frimann Frimannason two three-man Danish teams viking cup Danish pianes typically use twist-wing roil control Viking Cup slope races England Peter Kowaiski Germany set new F3F speed record placed third overall Gilder de signed F3B competition 100-in span V-Tail Peters brother Klaus sec ond wIth Nic Wright Britain winning second time row Frank Westons 160-In wing span Termina tor Frank gives detailed description vacuum bag glider wings co lumn pupil Raif Decker Through first nine rounds Nic Peter very close nobody could know would wineven Nic mostly leading position last round Peter fly ing before Nic knew make record flight get ahead Nic too much nerves After two cuts A-base turn simply gave up completed flight inverted Second place safe thought did matter brother Klaus made perfect flight last round crept few points ahead him way three days after contest Nics wife Pam gave birth beautiful boy James So dont expect 21st century come much easier F3F pilots planet Thanks Preben Norholm fascinating report Making vacuum-bagged wings Im going de vote remainder months column single subject vacuum bagging method making Glider wings has around over 10 years hasnt become very popularuntil re cently see more builders go ing technique think its time pass along some detailed information Bagging still fairly high-tech process realize experienced builders will feel ready try think beginning Sailplaners will find interesting process ap preciate benefits file information away future reference bagging expert Frank Weston may recall Franks description Terminator last Augusts column Magic Januarys Franks article reprinted below originally ap peared Capital Area Soaring Associations newsletter ably edited Gus Pelasus Vacuum pumps available Frank among others about $120 Franks comment about making pump zero cost done right certainly piqued interest Next month Ill describe made pumpnot exactly nothing pretty cheap Now over Frank Jet Fuel Tanks So Inexpensive Theyre Going Fast Somebodys finally come up ducted fan fuel tank costs less Boeing 747 Whats 11-ounce Sullivan fuel tank #380 has advantages higher priced tanks well some sought-after features its own instance its seamless greater protection against leaks its reversible left nt tank Only /16 thick fits around virtually 4 6 diameter fan units because uses standard Sullivan hardware replacement parts readily available Fully equipped glow fuel parts simple kit enables convert gasoline use easily vent tube bubble also gives maximum capacity longer flights between re-fuelings Fly down dealer soon ask about Sullivan jet fuel tanks prices PRODUCI down earth weve made easier PD Box 5166 Baltimore MD 21224 ever take off Getting Better Ideas Off Ground learned lot designing building Termi nator much what learned can result lighter stronger stiffer cheaper quicker building no matter what project Termina tors wings biggest departure con ventional methods lets discuss build Foam Wing Cores Wing construction starts cutting cores extruded foam blank cutting foam cores nothing new wont get other say cost Gentle Lady kit can buy equipment necessary cut own cores Call Nor-Ray Products see Aircraft Spruce Specialty Company catalog comprehensive list sources materials tools provided end article Styrene foam comes two major varieties extruded expanded bead Expanded bead foam kind found soda coolers typ ical foam-and-balsa kits Expanded bead foam light because formed discrete separate expanded beads cant easily sanded ab sorbs resin between beads fragile respects Extruded foam homogene ous easily sanded absorbs little resin weighs costs little expanded bead differentials insignificant purposes Because extruded foam workable absorbs less resin foam used Gliders Extruded foam panels 4 ft x 8 ft x 15 can obtained VIeck Company Balti Ask Dow Greyboard weighs 15 pounds per cubic foot Less $10 worth foam will build two Terminators plus Two terContinued page 186 March 1991 49 FOAMAIREIHAIrILK 10 SPAN 30-33 LBS 50-7500 POWER 74 IN WING SPAN 6-7 LBS 45-60 POWER 10 SPAN 19-22 LBS 35-42CC POWER 5-10 LB PAYLOAD OPTIONAL SPREADER4 OH PLY FOAM AND BALSA WOODCHOOSE 3 OR 4 OH SLOW AND STABLE KIT $26995 SPDKiT$1995 T $69953 CH $14995 4 CH $16495 SEND $100 FOR CATALOGRT 1 NEODESIIA KS 66757 OF SAC KITS AND ACC325-2821 FREE SHIPPING ON KIT ORDERSseoASTERCARD could have revolutionized way begin-turn until ready come out youof dual instruction ner learns Radio Control flying dia-apply opposite aileron opposite rudderINSTRUCTOR Are saying e follows strictly fiction some-against proverse yaw relax up el-BEGINNER Yes Im going solo now day may have technology make itevator return controls neutral theyou want give some dual instruc factwings level power back cruisetion later E BEGINNER Want buy trainer ACT ACT II year laterRC Soaring/Blakeslee BEGINNER Hello Can Imy new RCContinued page 49 flyBEGINNER Hello Can fly new trainer hereCrosswind extruded toam cores cut actual INSTRUCTOR Have flown beforeINSTRUCTOR Have flown beforeairfoil cross section Glass skins add about 01 BEGINNER NoBEGINNER Noinches total thickness cant cut foam INSTRUCTOR Sorry Youll need manyINSTRUCTOR Sorry youll need manythat accuracy dont worry about hours dual instruction before can flyhours dual instruction before can flywings cut panel ie multiyour trainer yourselfyour model yourselfsweep-back leading edgeBB join BEGINNER itthat hard toNotto instruc- spray adhesive Dont use epoxy other hard reallyflyBEGINNERaccordingglues since will cutting sanding INSTRUCTOR Yep Take basic turn ex ample have input aileron control tions just few lines Let joints dont want anything solid read youresist direction turn put Instructions fly Crosswind Once wing panels joined use hot some up elevator compensate loss go up pull right stick back lift because lift vector wings isTo go down push right stick forward now tilted respect vertical AndTo turn right push right stick good fliers add rudder compensate ad- right verse yawand great fliers add littleTo turn left posh right stick left power compensate extra drag go faster push left stick forward control inputs To go slower pull left stick back neutralize aileron proper INSTRUCTOR ridiculous let bank angle established continue fly check out BEGINNER No wait in-THE BEST IN SCALE LATNESstruction saysOver 25 Years Service PRECISION INSTRUMENTS'Note Crosswind can flown MILLS METALS BOOKSanyone Youthrough the%fS~sPlans Epoxy Glass Kits COMPLETE CATALOG $200almoststeer itairScale Docanteneasine L. y beginner can fly Crosswind intui-Winners atK a.i5. $400 lOGOs items CejJust way steer car ground itish Magazine Plans 5prmnqf1O OH 41551tivel An experienced RChoweverToledo-Master Interents & mareDUIUIUU 13 32 8562pilotBob will able fly hoursHolman Box 141 San Bernardino CA 92402 4 VINYLWRITE CUSTOM LEITERING Providing elegant time saving economical finishing touch modelers EZ TO APPLY ering comes prespaced prealignedsaving hours cutting fuss Th decals text custom corn uter cut 3M aligning individual letters ese cast vinyl 2 mu thin olors pe styles including Military B k igh NOW AVAILABLE Stencil asColor Outlining Premiumoc Priced right no minimum charge Eg AMA plus number ~PROTh7vE RACKINGAMAYOURE DONE1pack & sample ITS FREE P5ELOFFThECARRIERTAPE1high 2high plus $125P&H orders processed upon recjitSTEP BACK ADMIRE YOUR WORK Call write complete info VIF4YLWEITE CUSTOM LEllERING tom Letter Today 16043 Tulsa Streetj Granada Hills CA 91344--------- VINYLWRITE Way 818 363-7131 Noon 6PM Pacific order CA add tax 186 Model Aviation SPECIALISTS INCUS TOM COX TEE DEE& REED ENGINES 020S 049S 051S 074S & 09S ALL CUS TOM & STOCKPARTS VAILABLE INDIVIDUALLY COMPETITIONACCESSORIES RACING WHEELS KLOTZOIL CARBON FIBER SOLID LINES ALL KINDS OFFUEL TUBING THREEBRANDS OFGLOWPLUGS HA RD-TO-FIND HARD WA RE OLD TIMER SUPPLIES COILS CONDENSERS NGK& STITT SPARK PLUGS SILK8 COLORS QUA LITYDOPEBRUSHES 5& 7LOOP 1/4RUBBER BANDS TRANSISTOR IGNITIONSYSTEMS RESISTOR HIGH TENSION LEADS 1/2A TEXACO PLA YBOYSR KIT 1/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBERPOWERKITS PROPS TISSUEAND OTHER SUPPLIES CYANOACRYLA TES& EPOXIES ORDER BY MAIL OR PHONE 619 728-4365 SORRY NO COD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $300 STOCK ORDERS SHIPPED WITHIN 24 HRS wire straightedge cut out spar box Cut way through wing cutting tool use bent piece / wire wooden handle end wire attached foam-cutter power supply Cutting out box takes about 30 seconds per wing box removed two halves wing remain Frank means spar runs whole length wing core section designs don t case Ii make spar cutout root end coreBB servos mounted wing now time route hot wire small channel halves accept servo wire Now build spars construction % less spruce will serve top bottom spar caps addi tional strength required laminate carbon fiber onto spruce using PlC PlastiStic Terminator uses %2-in thick x -in wide spruce top bot tom 7-mit carbon fiber laminated bot tom both spar caps bottom spar cap has two additional laminates 7-mil carbon spar length 1A spar length Now place foam core bottom core bed wing box space place both top bottom spar caps top spar caps place whatever material intend use shear web Terminator uses six- eight-pounddensity urethane/polyester foam Aircraft Spruce although vertical-grain balsa would work well Mark shear web material along wing upper surface remove sand saw mark Using CyA PlastiStic best glue top bottom spar caps shear web Test fit completed spars wing should flush top bottom both spars completed mark wing rod carrier tubes desired dihedral angle Cut out marks tack glue tubes spars held desired rake dihedral Fill around carrier tubes epoxy mi croballoons wrap whole assembly 17oz Kevlar cloth Using 30-minute epoxy wet out Kevlar epoxy finished spars wings Total time wing construction point should less two hours Finish wings adding alignment rod carriers mounting blocks wing locks end caps etc Now using lightweight spackle Red Devil Time DAP Fast Final care fully fill dips discontinuities core surfaces Some builders squeegee light surface coat thinned spackle entire surface im prove adhesionBB spackle has dried use fine sandpaper 220 grit batten fair wing surfaces completely smooth use epoxy microballoons mix much harder foam will sand evenly Lightweight spackle sands just right adds little GATOR TRANSMITER CASE Sturdy wood/metal construction Waterproof vinyl covered exterior Convoluted foam liner Durable hinges latches withstand rough handling Accomodates single two stick transmitters Protect expensive transunitter.$2495 feather lite GLASS CLOTH 7 oz/sq yd weight close weave makes glass cloth easy filling extremely light finished weight Big 3 sq yd package detailed instructions$895 SOFT-N-SAFE MOUNT new type engine soft mount using special serrated Iso-damp grommets engine always safely retained Veiy effective vibration reduction dramatic decrease engine shake Available vely light machined alum beam mount 60 2/strokes 120 4/strokes Also available alum plate radial mount 60 2/strokes Soft-N-Safe 120 beam mount complete 5 Soft-N-Safe 60 beam mount complete 95 Soft-N-Safe 60 radial mount complete 5 Soft-N-Safe replacement Iso-damp grommets Specify soft firm Pkg 4 295 RADIAL ISO-MOUNTS Conventional plate type mount using four Lord/type Iso-mounts Soft 50 duro yellow firm 60 duro purple Iso-mounts available Optimized lowest vibration transmission airframe 60 Radial Iso-mount complete mount 95 Specify soft 50 duro firm 60 duro Iso-mounts Pkg four 995 5/8 dia x 1/2 long 8-32 female end 8-32 x 1/2 male other end Specify soft 50 duro yellow firm 60 duro purple Include $250/Item UPSFL Residents Add 6% Tax GATOR R/C PRODUCTS 3713 Pompano Dr Pensacola FI32514 904/476-8639 F March 1991 187 OUR RE V-UP IN VENTORY VERA GES 0 VER 9000 PROPS! IMMEDIA TESHIPMENTON WSA/MC Get starting po fmm THIS EXCITING AIRCRAFT WAS DESIGNED BY KIETH RIDER PURCHASED AND RE-ENGINED BY BILL SCHOENFELDT WITH AL MENASCOS SUPER BUCCANEER WITH TONY LeVIER AS PILOT THE FIRECRACKER WAS FLOWN WITH GREAT SUCCESS IN BOTH THE THOMPSON TROPHY AND GREVE AIR RACES WI LLIAMS BROS INC 181 PAWNEE ST SAN MARCOS CA 92069 619 744-3082 DEPT MA weight used non-load-bearing ca pacity Filling fairing critical step getting good-looking wing right Sanding foam apackle much much easier sanding ep oxy glass finished surface minute will save 30 later whole filling sanding process should take few minutes exclusive drying time Now ready vacuum bag Vacuum bagging can get equip ment materials need vacuum bagging less $30 need following vacuum pump compressor old refrigerator will workzero cost done right Vacuum pumps can purchased compa nies denoted VP list belowBB vacuum gauge T-fittings hoseSears sells complete hoses fittings $15 Trac Auto has less VG roll weather-stripping caulkSears again about $3 length 20-in-wide tubular 6-mil poly bag materialwidely available BM 20C per foot Weston Aerodesign Enough 14-mil Mylar sheet make top bottom covers surfaces bagged widely available MS $4 14/40-in-wide ft matcneo rerrormance ysiem TOP PERFORMANCE K&B ENGINES AirplaneMarine K&B FUELS K&B GLOW PLUGS 9 Blends4 Choices Matched Finish System BEST APPEARANCE K&5 FIBERGLASS CLOTHKSEs FILLER K&B SUPER FOXY RESINK&8THINNER K&B SUPER POXY PRIMER t&5 SUPER FOXY PAINT Weston Aerodesign Cut bag material about foot longer wingspan Seal end securely caulk Near end bag punch hole large enough insert bicycle-tube tire stem About 2-in-square piece tube should left stem Remove valve caulk stem side bag Please note good idea ever got Jack Cash Place few paper towels bag allow air flow stem corners bag once vacuum starts build Place strip caulk other end bag dont seal yet wing goes its ready Connect intake line salvaged compressor valve stem Use T-fitting somewhere line connect vacuum gauge assume have wired up tested compressor works reliably Watch out spray oil compressor exhaust line Glassing wings Start cutting two Mylar carrier sheets wing planform plus about A-in overlap Use several pieces masking tape join sheets trailing edges leaving about %2-in gap masking tape side down lay joined Mylar carrier Continued page 192 AbKOMUUISL ChANT Si-LARK ARC PRE-BUILT G SHARK $21495 SEE YOUR HOBBY DEALER FIRST SEND STAMPED #10 ENVELOPE FOR INFO KINGS WAY RIG HOBBY SUPPLY 5559 RECHMOND HOUSTON TX 77056 DEALERS ONLY 1-800-621-7783 1/32 SCALE PLANE TRACKER PILOT GLASSES High impact polycarbonate extra protect ion Dual gradient lens [Mirror Gray] Fit over prescription glasses Hard coated scratch resistance 1 year limited warranty Case Included AVAILABLE IN Clear $1795 Amber $1995 Gray $1995 Mirror Gray $2495 CA Mask Paint Mask Banded Ear Plugs $1695 $2295 $795 L 15 See hobby dealer first doesn have what need order direct SAFETY PLUS P 0 Box 1173 Dept iM Clinton MS 39060 1-800-842-7233 Cont US 601 924-9640 Satialaclion guaranteed Shi ing handling included dd $350 lot CD VISA lMC 188 Model Aviation wraparouna styie eliminates glare angles Blocks 100% harmful UV rays h p Electric F ight Haa Brake nth Lightweight 02 00money back Adjustable switching point guarantee Soidertess tenninat easy hookup ON/OFF Control ler2995 Mom Power save weight 25 Size 22x13x63 efficiency 006V loss Add SICOPo shippiog Califonisosidooisadd 725% 5217 Ta Send Cheek money order High Sky Fotaba eoooootse3929 Kansas St #9 sib 50bSan DiegoCA 92104 sheets flat surface Use carnauba car wax mold release Mylar sheets epoxy resin wont stick Unroll 2-oz glass cloth GC 450 bias over Mylar trim razor Mylar edges again bias going other way get two layers glass Now lay strip glass wing root edge Mylar out about six inches Lay other Out about three inches extra pieces will add strength wing root Cloth lay-up schedulesie weight type cloth num ber plieswill vary glider glider builder builder probably biggest trick baggingBB Put piece poly film un der Mylars keep resin off table Cut 1- 2-in-wide strip 2- 3-oz glass cloth long enough reach wing root way around tip Mix small amount same epoxy will use lamination acid brush attach strip leading edge foam core around tip Use little resin possible get glass wet resin needs tacky stage before going next step leading edge piece doesnt move around Spread laminating epoxy using 3-in foam roller over glass laid top Mylar sheets use West System 205 epoxy 206 hardener WS Other resins denoted ER belowBB highly recommend adding white pigment WP laminating epoxy pigment will give very nice color finished wing eliminate need paint glass wet lay super-absorbent paper towels top whole lay-up Use dry roller roll towels onto wet glass towels will absorb excess resin Let sit minute peel off dis card Some builders apply resin cloth layer squeegee off excess using paper towel trickBB Now take wing core position verti cally its trailing edge aligned between two sheets Mylar Fold sheets Mylar gether around core Set assembly bottom foam core bed correct position Use pieces masking tape end keep things shifting Slide whole thing vac uum bag seal end bag draw about five inches vacuum gauge Smooth out wrinkles make sure wing perfectly flat draw about 15 inches anything over 3 4 inches seems trick bag has slow leak 15 inches will show Note Some builders put wing bag placing bottom core bed between bag table Under light vacuum wing checked make sure lies true straight bed wing warped twisted stage itll crooked forever fidl vacuum can pulled Needless say bed must perfectly flat surfaceBB bag leaks check seals end around valve stem bag still leaks loses vacuum within few minutes probably pinholes bag material Pinholes almost impossible find left two options Either start over again another bag best choice run pump continu ously bums out compressors requires frequent attendance acquire com pressor try get large vacuum reservoir possible bigger reservoir longer can hold vacuum against slow leak Once get vacuum steady walk away dont bother anything least eight hours After eight hours epoxy will have set assembly can removed bag re move Mylar wing least 24 hours dont exert pressure directly against surface Until epoxy cures up hard very easy dimple wing sur face After week cure surface very ding resistant Peel Mylars carefully wing Trim sand flash edges have pigmented resin unless add ing flaps and/or ailerons wing finished add flaps/ailerons cut along hinge line razor metal straightedge Aluminum Sponsored byTri-Valley RIC Flyers Rosemount MN SUNBIRD SENSATION WITH STYLE Sunbird combines eye opening performance truly distinctive styling terrific flying design Whether choose 40 size Sunbird 10 Sunbird Jr youll find Sunbird perfect sport plane fl PRECISION PRODUCTS INC 714 592-5144 510 E Arrow Highway San Dimas CA 91773 r213x AIR WOLF EPOXY FIBERGLASS FUSELAGES TAKES MOST 50-60 MECHANICS OTHER MODELS AVAILABLE LARRY JOLLY MODEL PRODUCTS $21000 5501 WCOMO SANTA ANA CALIFORNIA 92703 714 826-6861 9OfDAIPOPAT PLOTS Sede ng rting Ssvices 3 Views D-TECI4 SYSTEMS Catdog $tOO 62916 8th Annual Swap Meet Sat Feb 16 1991 400 3 Convention Rooms Big INN 494 & Cedar Ave S Hwy 77 Bloomington MN Contact 612-454-5672 Rubber & Engine Power Free Flight Display Control Line Electric Power RIC Airplanes new illuatreted 32 page tabloId size catalog us Canada $100 Foreigh *300 Penn Valley Hobby center 837-A W Main St Lansdale PA 19446 215- 3680170 arrow shaft tubes can epoxied leading edges surfaces add stiffness Use rattail chain-saw file suitable diameter file semicircular groove both wings trailing edge surfaces leading edge groove should just large enough accommodate tube necessary tubes may telescoped using graduated diameters closely match taper wing Glue tube leading edge sur face using 5-minute epoxy sure sur face true glue curing Control sur faces can attached wing using arrowshaft hinges tape prefer tape because quicker lighter generates no stress points wing because control surfaces can re moved time repair painting Safety note extremely careful han dling trailing edges surface can very sharp will cut like razor warning Ill wager will cut yourself first time Once surfaces attached wing ready go Perhaps youll want prime paint competition Sailplane pigmented epoxy gives very good finish Priming painting very very time-consuming adds up 15% weight wing Dont unless just have elect paint few words caution Most paint solvents will eat styrene foam very quickly Dont rub solvent wing sur face dont gloss thick coats paint until surface well filled two things can happen both bad First solvent will seep through pinholes surface cause bubbles paint second solvent will dissolve thin foam trailing edge thereby causing glass skins separate Its pretty sight whole construction process takes two six hours actual labor two wing halves depending size complexity wing about one-third one-half time required other construction meth od actual cost materials about 25% cost construction uses balsa wings compare very favorably weight other construction methods much stronger stiffer set Two Meter wings weighs about 10 oz Terminator wings weigh 20 oz finished wings can also take beating lost Terminator #2 about 1000 ft according Casio altitude watch inside think control cable parted plane made vertical dive warp speed recenfly-plowed field planting itself vertically up its wing rods mud damage limited bent wing rod loosened empennage minor gravel rash Re pairs took less 30 minutes flying next day building wings other method Final hint Kitplanes magazine publication builders experimental aircraft other loo nies usually lists fair number suppliers composite materials tools full good ideas too will also get some valuable tips reading articles Model Aviation magazine Pylon Racers some great painting Free Flighters use radical construction methods everyone interested aerodynamics control conclude article Frank listed sources bagging supplies Since writing Frank has gone supplies business himself broad line includes everything needed bagging attractive prices too putting bagging seminars shop Thank Frank Weston valuable article Send large SASE list Franks sup plies also contains full line Sailplanes including Two Meter SAM-I 100-in Merlin 138-in Magic 160-in-span Termina tor am considering putting together complete list ing sources Sailplane building materials parts kits etc What think E Jr FF Champs/Grasmeyer Continued page 121 mention driving steep curving mountain roads few guardrails Still managed arrive ample time scheduled 700 am first round orga nizers forced move FlA Thurs day FiC FiB Friday Satur day Leaving field late morning stopped briefly hotel ate lunch university Mostar Apparently col lege food bad everywhere After lunch two young Yugoslavian wom en graduates university took Gaglianos Bob Sifleet Mike Keller tour renowned World War II merug 7d 4 ~ Podaogn Inc Only ce-tit led checks money ordem accepted Minimum order S12OOtortlmepackagesotd Pomerpolests3Soperoackage -I- $150 shipping handling CT residento add 75% sales tao Prices suhiect change inithout notice DEALER INQUIRIES INVITED Fm bother intorrnaljon dealer prices send SASE tousiness Card SERMO RIC SNAP CONNECTORS Inc Cedar Corners Station Box 16787 Stamford CT 06905 203 322-6294 THE LEADER IN COM PETITION NEW p DIA 12 13 14 15 16 NEW HIGH TECH AIRFOIL SECTION 10T020% INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCH 5/a34 634 72833456 833/a4568 8/a4568/a7 94566Va77Ia 10456B/a7 106W8W 10SEW 114677Ia775/a8 ii SW 11 6EW* ll/a 67 12 4W 12 5W 12 56 13 56 14 56 15 56 16 4N 16 678 PROPELLERS 4 CYCLE SERIES 100 THP DESIGN TAILORED HELICAL PITCH DEVELOPEDTOGIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALL THE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW PITCH THP 66 77 Ia 8 677/a 8 677/a 8 67 678 March 1991 193 NEW p FINGER SAVER INC P RESENTS Patented Safety Retainer No damaged fingers Eliminates need helper Allows complete freedom START & ADJUST plane ALONE High quality steel Lightweight Compact MUST flier Dealers invited NOW ONLY $1995 s&h FL res add 7% tax FINGER SAVER INC PO Box 1416 St Petersburg FL 33731 PRO SERIES 3 RO PYLON RACING SERIES 500 DIAPITCH 75N5/aN 8I6Ia7V,75/a8 SERIES 400C 8a/66a1777 977Va7/a W WIDE BLADE EW EXTRA WIDE N NARROW
Edition: Model Aviation - 1991/03
Page Numbers: 48, 49, 186, 187, 188, 192, 193
VIKING CUP F3F Race1990 F3F FAI provisional class model Glider Slope Rac ing contrast normal US practice F3F ra ces plane time against clock Eu ropeans decided racing four planes time too expensive Americans other hand prefer daredevil mano-a-mano damn collisions heat-racing style competition would interesting some top racers would go Europe compete F3F Theres no reason shouldnt well because best racers probably just fast may seem bit tame comparison pressure ex citement still Since its likely FAI will adopt both types racing aspirants World Class slope competition will undoubtedly doing F3F Danish friend Preben Norholm has long-time promoter F3F fact Danes have dominated F3F years Recently Brit ish Germans have gotten very competitive what Preben others sport want see iendly international meetings tight competition between individuals coun tries Preben attended 1990 Viking Cup held central England last October kind enough send cs following report eight nations 16 teams 49 competi tOrs biggest international F3F contest ever perfect weather made greatest F3F event ever too bad no Amer ican competitors Mr Dale Willoughby ever came way Guam watch contest F3F advance over Europe 1991 likely see three international events Prague England Den mark meet again great Viking Cup Race 1992 likely Norway Nic Wright did again very precise consistent flying just miracle man transmitter hand resistance way 10th final round untilnow rather unknown Kowalski brothers Co logne Germany Kowalski brothers placed first second big Okioberfest F3B con test Munich just two weeks before always good strong wind mostly between 10 20 in/sec 22 44 mph Buxton slopes fabulous No raln except during practice round during wind exceeded upper limit 25 in/sec 55 mph Thats what call storm too cold taking time year account mostly tween 500 600 F results no less spectacular Before contest watched two con test flights below 40 seconds time saw Nic Wright earn 831 points discard round doing 3973 seconds because Peter Kowal ski made unbelievable 3303-second run same round Both brothers have wonderfully aggressive flying style fly same F3B models seem turn dime give SC change use Quabeck 10/90 wing airfoils 22% flaps flaps allerons de flected some 3 4 mm %42 down ward full Up elevator course record-breaking flights occasional wind its strong est combined big thermal Also top pilots turned 45- 50-second flight because did something wrong because fly during less favorable con ditions After 10 rounds evens out Two teams catne Germany four England Norway Iceland N Ireland two Denmark Representatives two new countries Austria France showed up came learnlike Ger mans did Denmark last year certainly did flying Team G-S together two Germans father son Horzitz never learned team got name did place too badly thanks son Armin Munich Germanys top F3B pilots 48 Model Aviation Radio Control Soaring Byron Blakeslee 3134 N Winnebafo Dr 35 Iceland population just over 200000 competes internationally F3F class Heres team competed England beautiful gliders national colors left Rafn Thorarensen Bodvar Gudmundsson Frimann Frimannason two three-man Danish teams viking cup Danish pianes typically use twist-wing roil control Viking Cup slope races England Peter Kowaiski Germany set new F3F speed record placed third overall Gilder de signed F3B competition 100-in span V-Tail Peters brother Klaus sec ond wIth Nic Wright Britain winning second time row Frank Westons 160-In wing span Termina tor Frank gives detailed description vacuum bag glider wings co lumn pupil Raif Decker Through first nine rounds Nic Peter very close nobody could know would wineven Nic mostly leading position last round Peter fly ing before Nic knew make record flight get ahead Nic too much nerves After two cuts A-base turn simply gave up completed flight inverted Second place safe thought did matter brother Klaus made perfect flight last round crept few points ahead him way three days after contest Nics wife Pam gave birth beautiful boy James So dont expect 21st century come much easier F3F pilots planet Thanks Preben Norholm fascinating report Making vacuum-bagged wings Im going de vote remainder months column single subject vacuum bagging method making Glider wings has around over 10 years hasnt become very popularuntil re cently see more builders go ing technique think its time pass along some detailed information Bagging still fairly high-tech process realize experienced builders will feel ready try think beginning Sailplaners will find interesting process ap preciate benefits file information away future reference bagging expert Frank Weston may recall Franks description Terminator last Augusts column Magic Januarys Franks article reprinted below originally ap peared Capital Area Soaring Associations newsletter ably edited Gus Pelasus Vacuum pumps available Frank among others about $120 Franks comment about making pump zero cost done right certainly piqued interest Next month Ill describe made pumpnot exactly nothing pretty cheap Now over Frank Jet Fuel Tanks So Inexpensive Theyre Going Fast Somebodys finally come up ducted fan fuel tank costs less Boeing 747 Whats 11-ounce Sullivan fuel tank #380 has advantages higher priced tanks well some sought-after features its own instance its seamless greater protection against leaks its reversible left nt tank Only /16 thick fits around virtually 4 6 diameter fan units because uses standard Sullivan hardware replacement parts readily available Fully equipped glow fuel parts simple kit enables convert gasoline use easily vent tube bubble also gives maximum capacity longer flights between re-fuelings Fly down dealer soon ask about Sullivan jet fuel tanks prices PRODUCI down earth weve made easier PD Box 5166 Baltimore MD 21224 ever take off Getting Better Ideas Off Ground learned lot designing building Termi nator much what learned can result lighter stronger stiffer cheaper quicker building no matter what project Termina tors wings biggest departure con ventional methods lets discuss build Foam Wing Cores Wing construction starts cutting cores extruded foam blank cutting foam cores nothing new wont get other say cost Gentle Lady kit can buy equipment necessary cut own cores Call Nor-Ray Products see Aircraft Spruce Specialty Company catalog comprehensive list sources materials tools provided end article Styrene foam comes two major varieties extruded expanded bead Expanded bead foam kind found soda coolers typ ical foam-and-balsa kits Expanded bead foam light because formed discrete separate expanded beads cant easily sanded ab sorbs resin between beads fragile respects Extruded foam homogene ous easily sanded absorbs little resin weighs costs little expanded bead differentials insignificant purposes Because extruded foam workable absorbs less resin foam used Gliders Extruded foam panels 4 ft x 8 ft x 15 can obtained VIeck Company Balti Ask Dow Greyboard weighs 15 pounds per cubic foot Less $10 worth foam will build two Terminators plus Two terContinued page 186 March 1991 49 FOAMAIREIHAIrILK 10 SPAN 30-33 LBS 50-7500 POWER 74 IN WING SPAN 6-7 LBS 45-60 POWER 10 SPAN 19-22 LBS 35-42CC POWER 5-10 LB PAYLOAD OPTIONAL SPREADER4 OH PLY FOAM AND BALSA WOODCHOOSE 3 OR 4 OH SLOW AND STABLE KIT $26995 SPDKiT$1995 T $69953 CH $14995 4 CH $16495 SEND $100 FOR CATALOGRT 1 NEODESIIA KS 66757 OF SAC KITS AND ACC325-2821 FREE SHIPPING ON KIT ORDERSseoASTERCARD could have revolutionized way begin-turn until ready come out youof dual instruction ner learns Radio Control flying dia-apply opposite aileron opposite rudderINSTRUCTOR Are saying e follows strictly fiction some-against proverse yaw relax up el-BEGINNER Yes Im going solo now day may have technology make itevator return controls neutral theyou want give some dual instruc factwings level power back cruisetion later E BEGINNER Want buy trainer ACT ACT II year laterRC Soaring/Blakeslee BEGINNER Hello Can Imy new RCContinued page 49 flyBEGINNER Hello Can fly new trainer hereCrosswind extruded toam cores cut actual INSTRUCTOR Have flown beforeINSTRUCTOR Have flown beforeairfoil cross section Glass skins add about 01 BEGINNER NoBEGINNER Noinches total thickness cant cut foam INSTRUCTOR Sorry Youll need manyINSTRUCTOR Sorry youll need manythat accuracy dont worry about hours dual instruction before can flyhours dual instruction before can flywings cut panel ie multiyour trainer yourselfyour model yourselfsweep-back leading edgeBB join BEGINNER itthat hard toNotto instruc- spray adhesive Dont use epoxy other hard reallyflyBEGINNERaccordingglues since will cutting sanding INSTRUCTOR Yep Take basic turn ex ample have input aileron control tions just few lines Let joints dont want anything solid read youresist direction turn put Instructions fly Crosswind Once wing panels joined use hot some up elevator compensate loss go up pull right stick back lift because lift vector wings isTo go down push right stick forward now tilted respect vertical AndTo turn right push right stick good fliers add rudder compensate ad- right verse yawand great fliers add littleTo turn left posh right stick left power compensate extra drag go faster push left stick forward control inputs To go slower pull left stick back neutralize aileron proper INSTRUCTOR ridiculous let bank angle established continue fly check out BEGINNER No wait in-THE BEST IN SCALE LATNESstruction saysOver 25 Years Service PRECISION INSTRUMENTS'Note Crosswind can flown MILLS METALS BOOKSanyone Youthrough the%fS~sPlans Epoxy Glass Kits COMPLETE CATALOG $200almoststeer itairScale Docanteneasine L. y beginner can fly Crosswind intui-Winners atK a.i5. $400 lOGOs items CejJust way steer car ground itish Magazine Plans 5prmnqf1O OH 41551tivel An experienced RChoweverToledo-Master Interents & mareDUIUIUU 13 32 8562pilotBob will able fly hoursHolman Box 141 San Bernardino CA 92402 4 VINYLWRITE CUSTOM LEITERING Providing elegant time saving economical finishing touch modelers EZ TO APPLY ering comes prespaced prealignedsaving hours cutting fuss Th decals text custom corn uter cut 3M aligning individual letters ese cast vinyl 2 mu thin olors pe styles including Military B k igh NOW AVAILABLE Stencil asColor Outlining Premiumoc Priced right no minimum charge Eg AMA plus number ~PROTh7vE RACKINGAMAYOURE DONE1pack & sample ITS FREE P5ELOFFThECARRIERTAPE1high 2high plus $125P&H orders processed upon recjitSTEP BACK ADMIRE YOUR WORK Call write complete info VIF4YLWEITE CUSTOM LEllERING tom Letter Today 16043 Tulsa Streetj Granada Hills CA 91344--------- VINYLWRITE Way 818 363-7131 Noon 6PM Pacific order CA add tax 186 Model Aviation SPECIALISTS INCUS TOM COX TEE DEE& REED ENGINES 020S 049S 051S 074S & 09S ALL CUS TOM & STOCKPARTS VAILABLE INDIVIDUALLY COMPETITIONACCESSORIES RACING WHEELS KLOTZOIL CARBON FIBER SOLID LINES ALL KINDS OFFUEL TUBING THREEBRANDS OFGLOWPLUGS HA RD-TO-FIND HARD WA RE OLD TIMER SUPPLIES COILS CONDENSERS NGK& STITT SPARK PLUGS SILK8 COLORS QUA LITYDOPEBRUSHES 5& 7LOOP 1/4RUBBER BANDS TRANSISTOR IGNITIONSYSTEMS RESISTOR HIGH TENSION LEADS 1/2A TEXACO PLA YBOYSR KIT 1/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBERPOWERKITS PROPS TISSUEAND OTHER SUPPLIES CYANOACRYLA TES& EPOXIES ORDER BY MAIL OR PHONE 619 728-4365 SORRY NO COD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $300 STOCK ORDERS SHIPPED WITHIN 24 HRS wire straightedge cut out spar box Cut way through wing cutting tool use bent piece / wire wooden handle end wire attached foam-cutter power supply Cutting out box takes about 30 seconds per wing box removed two halves wing remain Frank means spar runs whole length wing core section designs don t case Ii make spar cutout root end coreBB servos mounted wing now time route hot wire small channel halves accept servo wire Now build spars construction % less spruce will serve top bottom spar caps addi tional strength required laminate carbon fiber onto spruce using PlC PlastiStic Terminator uses %2-in thick x -in wide spruce top bot tom 7-mit carbon fiber laminated bot tom both spar caps bottom spar cap has two additional laminates 7-mil carbon spar length 1A spar length Now place foam core bottom core bed wing box space place both top bottom spar caps top spar caps place whatever material intend use shear web Terminator uses six- eight-pounddensity urethane/polyester foam Aircraft Spruce although vertical-grain balsa would work well Mark shear web material along wing upper surface remove sand saw mark Using CyA PlastiStic best glue top bottom spar caps shear web Test fit completed spars wing should flush top bottom both spars completed mark wing rod carrier tubes desired dihedral angle Cut out marks tack glue tubes spars held desired rake dihedral Fill around carrier tubes epoxy mi croballoons wrap whole assembly 17oz Kevlar cloth Using 30-minute epoxy wet out Kevlar epoxy finished spars wings Total time wing construction point should less two hours Finish wings adding alignment rod carriers mounting blocks wing locks end caps etc Now using lightweight spackle Red Devil Time DAP Fast Final care fully fill dips discontinuities core surfaces Some builders squeegee light surface coat thinned spackle entire surface im prove adhesionBB spackle has dried use fine sandpaper 220 grit batten fair wing surfaces completely smooth use epoxy microballoons mix much harder foam will sand evenly Lightweight spackle sands just right adds little GATOR TRANSMITER CASE Sturdy wood/metal construction Waterproof vinyl covered exterior Convoluted foam liner Durable hinges latches withstand rough handling Accomodates single two stick transmitters Protect expensive transunitter.$2495 feather lite GLASS CLOTH 7 oz/sq yd weight close weave makes glass cloth easy filling extremely light finished weight Big 3 sq yd package detailed instructions$895 SOFT-N-SAFE MOUNT new type engine soft mount using special serrated Iso-damp grommets engine always safely retained Veiy effective vibration reduction dramatic decrease engine shake Available vely light machined alum beam mount 60 2/strokes 120 4/strokes Also available alum plate radial mount 60 2/strokes Soft-N-Safe 120 beam mount complete 5 Soft-N-Safe 60 beam mount complete 95 Soft-N-Safe 60 radial mount complete 5 Soft-N-Safe replacement Iso-damp grommets Specify soft firm Pkg 4 295 RADIAL ISO-MOUNTS Conventional plate type mount using four Lord/type Iso-mounts Soft 50 duro yellow firm 60 duro purple Iso-mounts available Optimized lowest vibration transmission airframe 60 Radial Iso-mount complete mount 95 Specify soft 50 duro firm 60 duro Iso-mounts Pkg four 995 5/8 dia x 1/2 long 8-32 female end 8-32 x 1/2 male other end Specify soft 50 duro yellow firm 60 duro purple Include $250/Item UPSFL Residents Add 6% Tax GATOR R/C PRODUCTS 3713 Pompano Dr Pensacola FI32514 904/476-8639 F March 1991 187 OUR RE V-UP IN VENTORY VERA GES 0 VER 9000 PROPS! IMMEDIA TESHIPMENTON WSA/MC Get starting po fmm THIS EXCITING AIRCRAFT WAS DESIGNED BY KIETH RIDER PURCHASED AND RE-ENGINED BY BILL SCHOENFELDT WITH AL MENASCOS SUPER BUCCANEER WITH TONY LeVIER AS PILOT THE FIRECRACKER WAS FLOWN WITH GREAT SUCCESS IN BOTH THE THOMPSON TROPHY AND GREVE AIR RACES WI LLIAMS BROS INC 181 PAWNEE ST SAN MARCOS CA 92069 619 744-3082 DEPT MA weight used non-load-bearing ca pacity Filling fairing critical step getting good-looking wing right Sanding foam apackle much much easier sanding ep oxy glass finished surface minute will save 30 later whole filling sanding process should take few minutes exclusive drying time Now ready vacuum bag Vacuum bagging can get equip ment materials need vacuum bagging less $30 need following vacuum pump compressor old refrigerator will workzero cost done right Vacuum pumps can purchased compa nies denoted VP list belowBB vacuum gauge T-fittings hoseSears sells complete hoses fittings $15 Trac Auto has less VG roll weather-stripping caulkSears again about $3 length 20-in-wide tubular 6-mil poly bag materialwidely available BM 20C per foot Weston Aerodesign Enough 14-mil Mylar sheet make top bottom covers surfaces bagged widely available MS $4 14/40-in-wide ft matcneo rerrormance ysiem TOP PERFORMANCE K&B ENGINES AirplaneMarine K&B FUELS K&B GLOW PLUGS 9 Blends4 Choices Matched Finish System BEST APPEARANCE K&5 FIBERGLASS CLOTHKSEs FILLER K&B SUPER FOXY RESINK&8THINNER K&B SUPER POXY PRIMER t&5 SUPER FOXY PAINT Weston Aerodesign Cut bag material about foot longer wingspan Seal end securely caulk Near end bag punch hole large enough insert bicycle-tube tire stem About 2-in-square piece tube should left stem Remove valve caulk stem side bag Please note good idea ever got Jack Cash Place few paper towels bag allow air flow stem corners bag once vacuum starts build Place strip caulk other end bag dont seal yet wing goes its ready Connect intake line salvaged compressor valve stem Use T-fitting somewhere line connect vacuum gauge assume have wired up tested compressor works reliably Watch out spray oil compressor exhaust line Glassing wings Start cutting two Mylar carrier sheets wing planform plus about A-in overlap Use several pieces masking tape join sheets trailing edges leaving about %2-in gap masking tape side down lay joined Mylar carrier Continued page 192 AbKOMUUISL ChANT Si-LARK ARC PRE-BUILT G SHARK $21495 SEE YOUR HOBBY DEALER FIRST SEND STAMPED #10 ENVELOPE FOR INFO KINGS WAY RIG HOBBY SUPPLY 5559 RECHMOND HOUSTON TX 77056 DEALERS ONLY 1-800-621-7783 1/32 SCALE PLANE TRACKER PILOT GLASSES High impact polycarbonate extra protect ion Dual gradient lens [Mirror Gray] Fit over prescription glasses Hard coated scratch resistance 1 year limited warranty Case Included AVAILABLE IN Clear $1795 Amber $1995 Gray $1995 Mirror Gray $2495 CA Mask Paint Mask Banded Ear Plugs $1695 $2295 $795 L 15 See hobby dealer first doesn have what need order direct SAFETY PLUS P 0 Box 1173 Dept iM Clinton MS 39060 1-800-842-7233 Cont US 601 924-9640 Satialaclion guaranteed Shi ing handling included dd $350 lot CD VISA lMC 188 Model Aviation wraparouna styie eliminates glare angles Blocks 100% harmful UV rays h p Electric F ight Haa Brake nth Lightweight 02 00money back Adjustable switching point guarantee Soidertess tenninat easy hookup ON/OFF Control ler2995 Mom Power save weight 25 Size 22x13x63 efficiency 006V loss Add SICOPo shippiog Califonisosidooisadd 725% 5217 Ta Send Cheek money order High Sky Fotaba eoooootse3929 Kansas St #9 sib 50bSan DiegoCA 92104 sheets flat surface Use carnauba car wax mold release Mylar sheets epoxy resin wont stick Unroll 2-oz glass cloth GC 450 bias over Mylar trim razor Mylar edges again bias going other way get two layers glass Now lay strip glass wing root edge Mylar out about six inches Lay other Out about three inches extra pieces will add strength wing root Cloth lay-up schedulesie weight type cloth num ber plieswill vary glider glider builder builder probably biggest trick baggingBB Put piece poly film un der Mylars keep resin off table Cut 1- 2-in-wide strip 2- 3-oz glass cloth long enough reach wing root way around tip Mix small amount same epoxy will use lamination acid brush attach strip leading edge foam core around tip Use little resin possible get glass wet resin needs tacky stage before going next step leading edge piece doesnt move around Spread laminating epoxy using 3-in foam roller over glass laid top Mylar sheets use West System 205 epoxy 206 hardener WS Other resins denoted ER belowBB highly recommend adding white pigment WP laminating epoxy pigment will give very nice color finished wing eliminate need paint glass wet lay super-absorbent paper towels top whole lay-up Use dry roller roll towels onto wet glass towels will absorb excess resin Let sit minute peel off dis card Some builders apply resin cloth layer squeegee off excess using paper towel trickBB Now take wing core position verti cally its trailing edge aligned between two sheets Mylar Fold sheets Mylar gether around core Set assembly bottom foam core bed correct position Use pieces masking tape end keep things shifting Slide whole thing vac uum bag seal end bag draw about five inches vacuum gauge Smooth out wrinkles make sure wing perfectly flat draw about 15 inches anything over 3 4 inches seems trick bag has slow leak 15 inches will show Note Some builders put wing bag placing bottom core bed between bag table Under light vacuum wing checked make sure lies true straight bed wing warped twisted stage itll crooked forever fidl vacuum can pulled Needless say bed must perfectly flat surfaceBB bag leaks check seals end around valve stem bag still leaks loses vacuum within few minutes probably pinholes bag material Pinholes almost impossible find left two options Either start over again another bag best choice run pump continu ously bums out compressors requires frequent attendance acquire com pressor try get large vacuum reservoir possible bigger reservoir longer can hold vacuum against slow leak Once get vacuum steady walk away dont bother anything least eight hours After eight hours epoxy will have set assembly can removed bag re move Mylar wing least 24 hours dont exert pressure directly against surface Until epoxy cures up hard very easy dimple wing sur face After week cure surface very ding resistant Peel Mylars carefully wing Trim sand flash edges have pigmented resin unless add ing flaps and/or ailerons wing finished add flaps/ailerons cut along hinge line razor metal straightedge Aluminum Sponsored byTri-Valley RIC Flyers Rosemount MN SUNBIRD SENSATION WITH STYLE Sunbird combines eye opening performance truly distinctive styling terrific flying design Whether choose 40 size Sunbird 10 Sunbird Jr youll find Sunbird perfect sport plane fl PRECISION PRODUCTS INC 714 592-5144 510 E Arrow Highway San Dimas CA 91773 r213x AIR WOLF EPOXY FIBERGLASS FUSELAGES TAKES MOST 50-60 MECHANICS OTHER MODELS AVAILABLE LARRY JOLLY MODEL PRODUCTS $21000 5501 WCOMO SANTA ANA CALIFORNIA 92703 714 826-6861 9OfDAIPOPAT PLOTS Sede ng rting Ssvices 3 Views D-TECI4 SYSTEMS Catdog $tOO 62916 8th Annual Swap Meet Sat Feb 16 1991 400 3 Convention Rooms Big INN 494 & Cedar Ave S Hwy 77 Bloomington MN Contact 612-454-5672 Rubber & Engine Power Free Flight Display Control Line Electric Power RIC Airplanes new illuatreted 32 page tabloId size catalog us Canada $100 Foreigh *300 Penn Valley Hobby center 837-A W Main St Lansdale PA 19446 215- 3680170 arrow shaft tubes can epoxied leading edges surfaces add stiffness Use rattail chain-saw file suitable diameter file semicircular groove both wings trailing edge surfaces leading edge groove should just large enough accommodate tube necessary tubes may telescoped using graduated diameters closely match taper wing Glue tube leading edge sur face using 5-minute epoxy sure sur face true glue curing Control sur faces can attached wing using arrowshaft hinges tape prefer tape because quicker lighter generates no stress points wing because control surfaces can re moved time repair painting Safety note extremely careful han dling trailing edges surface can very sharp will cut like razor warning Ill wager will cut yourself first time Once surfaces attached wing ready go Perhaps youll want prime paint competition Sailplane pigmented epoxy gives very good finish Priming painting very very time-consuming adds up 15% weight wing Dont unless just have elect paint few words caution Most paint solvents will eat styrene foam very quickly Dont rub solvent wing sur face dont gloss thick coats paint until surface well filled two things can happen both bad First solvent will seep through pinholes surface cause bubbles paint second solvent will dissolve thin foam trailing edge thereby causing glass skins separate Its pretty sight whole construction process takes two six hours actual labor two wing halves depending size complexity wing about one-third one-half time required other construction meth od actual cost materials about 25% cost construction uses balsa wings compare very favorably weight other construction methods much stronger stiffer set Two Meter wings weighs about 10 oz Terminator wings weigh 20 oz finished wings can also take beating lost Terminator #2 about 1000 ft according Casio altitude watch inside think control cable parted plane made vertical dive warp speed recenfly-plowed field planting itself vertically up its wing rods mud damage limited bent wing rod loosened empennage minor gravel rash Re pairs took less 30 minutes flying next day building wings other method Final hint Kitplanes magazine publication builders experimental aircraft other loo nies usually lists fair number suppliers composite materials tools full good ideas too will also get some valuable tips reading articles Model Aviation magazine Pylon Racers some great painting Free Flighters use radical construction methods everyone interested aerodynamics control conclude article Frank listed sources bagging supplies Since writing Frank has gone supplies business himself broad line includes everything needed bagging attractive prices too putting bagging seminars shop Thank Frank Weston valuable article Send large SASE list Franks sup plies also contains full line Sailplanes including Two Meter SAM-I 100-in Merlin 138-in Magic 160-in-span Termina tor am considering putting together complete list ing sources Sailplane building materials parts kits etc What think E Jr FF Champs/Grasmeyer Continued page 121 mention driving steep curving mountain roads few guardrails Still managed arrive ample time scheduled 700 am first round orga nizers forced move FlA Thurs day FiC FiB Friday Satur day Leaving field late morning stopped briefly hotel ate lunch university Mostar Apparently col lege food bad everywhere After lunch two young Yugoslavian wom en graduates university took Gaglianos Bob Sifleet Mike Keller tour renowned World War II merug 7d 4 ~ Podaogn Inc Only ce-tit led checks money ordem accepted Minimum order S12OOtortlmepackagesotd Pomerpolests3Soperoackage -I- $150 shipping handling CT residento add 75% sales tao Prices suhiect change inithout notice DEALER INQUIRIES INVITED Fm bother intorrnaljon dealer prices send SASE tousiness Card SERMO RIC SNAP CONNECTORS Inc Cedar Corners Station Box 16787 Stamford CT 06905 203 322-6294 THE LEADER IN COM PETITION NEW p DIA 12 13 14 15 16 NEW HIGH TECH AIRFOIL SECTION 10T020% INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCH 5/a34 634 72833456 833/a4568 8/a4568/a7 94566Va77Ia 10456B/a7 106W8W 10SEW 114677Ia775/a8 ii SW 11 6EW* ll/a 67 12 4W 12 5W 12 56 13 56 14 56 15 56 16 4N 16 678 PROPELLERS 4 CYCLE SERIES 100 THP DESIGN TAILORED HELICAL PITCH DEVELOPEDTOGIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALL THE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW PITCH THP 66 77 Ia 8 677/a 8 677/a 8 67 678 March 1991 193 NEW p FINGER SAVER INC P RESENTS Patented Safety Retainer No damaged fingers Eliminates need helper Allows complete freedom START & ADJUST plane ALONE High quality steel Lightweight Compact MUST flier Dealers invited NOW ONLY $1995 s&h FL res add 7% tax FINGER SAVER INC PO Box 1416 St Petersburg FL 33731 PRO SERIES 3 RO PYLON RACING SERIES 500 DIAPITCH 75N5/aN 8I6Ia7V,75/a8 SERIES 400C 8a/66a1777 977Va7/a W WIDE BLADE EW EXTRA WIDE N NARROW
Edition: Model Aviation - 1991/03
Page Numbers: 48, 49, 186, 187, 188, 192, 193
VIKING CUP F3F Race1990 F3F FAI provisional class model Glider Slope Rac ing contrast normal US practice F3F ra ces plane time against clock Eu ropeans decided racing four planes time too expensive Americans other hand prefer daredevil mano-a-mano damn collisions heat-racing style competition would interesting some top racers would go Europe compete F3F Theres no reason shouldnt well because best racers probably just fast may seem bit tame comparison pressure ex citement still Since its likely FAI will adopt both types racing aspirants World Class slope competition will undoubtedly doing F3F Danish friend Preben Norholm has long-time promoter F3F fact Danes have dominated F3F years Recently Brit ish Germans have gotten very competitive what Preben others sport want see iendly international meetings tight competition between individuals coun tries Preben attended 1990 Viking Cup held central England last October kind enough send cs following report eight nations 16 teams 49 competi tOrs biggest international F3F contest ever perfect weather made greatest F3F event ever too bad no Amer ican competitors Mr Dale Willoughby ever came way Guam watch contest F3F advance over Europe 1991 likely see three international events Prague England Den mark meet again great Viking Cup Race 1992 likely Norway Nic Wright did again very precise consistent flying just miracle man transmitter hand resistance way 10th final round untilnow rather unknown Kowalski brothers Co logne Germany Kowalski brothers placed first second big Okioberfest F3B con test Munich just two weeks before always good strong wind mostly between 10 20 in/sec 22 44 mph Buxton slopes fabulous No raln except during practice round during wind exceeded upper limit 25 in/sec 55 mph Thats what call storm too cold taking time year account mostly tween 500 600 F results no less spectacular Before contest watched two con test flights below 40 seconds time saw Nic Wright earn 831 points discard round doing 3973 seconds because Peter Kowal ski made unbelievable 3303-second run same round Both brothers have wonderfully aggressive flying style fly same F3B models seem turn dime give SC change use Quabeck 10/90 wing airfoils 22% flaps flaps allerons de flected some 3 4 mm %42 down ward full Up elevator course record-breaking flights occasional wind its strong est combined big thermal Also top pilots turned 45- 50-second flight because did something wrong because fly during less favorable con ditions After 10 rounds evens out Two teams catne Germany four England Norway Iceland N Ireland two Denmark Representatives two new countries Austria France showed up came learnlike Ger mans did Denmark last year certainly did flying Team G-S together two Germans father son Horzitz never learned team got name did place too badly thanks son Armin Munich Germanys top F3B pilots 48 Model Aviation Radio Control Soaring Byron Blakeslee 3134 N Winnebafo Dr 35 Iceland population just over 200000 competes internationally F3F class Heres team competed England beautiful gliders national colors left Rafn Thorarensen Bodvar Gudmundsson Frimann Frimannason two three-man Danish teams viking cup Danish pianes typically use twist-wing roil control Viking Cup slope races England Peter Kowaiski Germany set new F3F speed record placed third overall Gilder de signed F3B competition 100-in span V-Tail Peters brother Klaus sec ond wIth Nic Wright Britain winning second time row Frank Westons 160-In wing span Termina tor Frank gives detailed description vacuum bag glider wings co lumn pupil Raif Decker Through first nine rounds Nic Peter very close nobody could know would wineven Nic mostly leading position last round Peter fly ing before Nic knew make record flight get ahead Nic too much nerves After two cuts A-base turn simply gave up completed flight inverted Second place safe thought did matter brother Klaus made perfect flight last round crept few points ahead him way three days after contest Nics wife Pam gave birth beautiful boy James So dont expect 21st century come much easier F3F pilots planet Thanks Preben Norholm fascinating report Making vacuum-bagged wings Im going de vote remainder months column single subject vacuum bagging method making Glider wings has around over 10 years hasnt become very popularuntil re cently see more builders go ing technique think its time pass along some detailed information Bagging still fairly high-tech process realize experienced builders will feel ready try think beginning Sailplaners will find interesting process ap preciate benefits file information away future reference bagging expert Frank Weston may recall Franks description Terminator last Augusts column Magic Januarys Franks article reprinted below originally ap peared Capital Area Soaring Associations newsletter ably edited Gus Pelasus Vacuum pumps available Frank among others about $120 Franks comment about making pump zero cost done right certainly piqued interest Next month Ill describe made pumpnot exactly nothing pretty cheap Now over Frank Jet Fuel Tanks So Inexpensive Theyre Going Fast Somebodys finally come up ducted fan fuel tank costs less Boeing 747 Whats 11-ounce Sullivan fuel tank #380 has advantages higher priced tanks well some sought-after features its own instance its seamless greater protection against leaks its reversible left nt tank Only /16 thick fits around virtually 4 6 diameter fan units because uses standard Sullivan hardware replacement parts readily available Fully equipped glow fuel parts simple kit enables convert gasoline use easily vent tube bubble also gives maximum capacity longer flights between re-fuelings Fly down dealer soon ask about Sullivan jet fuel tanks prices PRODUCI down earth weve made easier PD Box 5166 Baltimore MD 21224 ever take off Getting Better Ideas Off Ground learned lot designing building Termi nator much what learned can result lighter stronger stiffer cheaper quicker building no matter what project Termina tors wings biggest departure con ventional methods lets discuss build Foam Wing Cores Wing construction starts cutting cores extruded foam blank cutting foam cores nothing new wont get other say cost Gentle Lady kit can buy equipment necessary cut own cores Call Nor-Ray Products see Aircraft Spruce Specialty Company catalog comprehensive list sources materials tools provided end article Styrene foam comes two major varieties extruded expanded bead Expanded bead foam kind found soda coolers typ ical foam-and-balsa kits Expanded bead foam light because formed discrete separate expanded beads cant easily sanded ab sorbs resin between beads fragile respects Extruded foam homogene ous easily sanded absorbs little resin weighs costs little expanded bead differentials insignificant purposes Because extruded foam workable absorbs less resin foam used Gliders Extruded foam panels 4 ft x 8 ft x 15 can obtained VIeck Company Balti Ask Dow Greyboard weighs 15 pounds per cubic foot Less $10 worth foam will build two Terminators plus Two terContinued page 186 March 1991 49 FOAMAIREIHAIrILK 10 SPAN 30-33 LBS 50-7500 POWER 74 IN WING SPAN 6-7 LBS 45-60 POWER 10 SPAN 19-22 LBS 35-42CC POWER 5-10 LB PAYLOAD OPTIONAL SPREADER4 OH PLY FOAM AND BALSA WOODCHOOSE 3 OR 4 OH SLOW AND STABLE KIT $26995 SPDKiT$1995 T $69953 CH $14995 4 CH $16495 SEND $100 FOR CATALOGRT 1 NEODESIIA KS 66757 OF SAC KITS AND ACC325-2821 FREE SHIPPING ON KIT ORDERSseoASTERCARD could have revolutionized way begin-turn until ready come out youof dual instruction ner learns Radio Control flying dia-apply opposite aileron opposite rudderINSTRUCTOR Are saying e follows strictly fiction some-against proverse yaw relax up el-BEGINNER Yes Im going solo now day may have technology make itevator return controls neutral theyou want give some dual instruc factwings level power back cruisetion later E BEGINNER Want buy trainer ACT ACT II year laterRC Soaring/Blakeslee BEGINNER Hello Can Imy new RCContinued page 49 flyBEGINNER Hello Can fly new trainer hereCrosswind extruded toam cores cut actual INSTRUCTOR Have flown beforeINSTRUCTOR Have flown beforeairfoil cross section Glass skins add about 01 BEGINNER NoBEGINNER Noinches total thickness cant cut foam INSTRUCTOR Sorry Youll need manyINSTRUCTOR Sorry youll need manythat accuracy dont worry about hours dual instruction before can flyhours dual instruction before can flywings cut panel ie multiyour trainer yourselfyour model yourselfsweep-back leading edgeBB join BEGINNER itthat hard toNotto instruc- spray adhesive Dont use epoxy other hard reallyflyBEGINNERaccordingglues since will cutting sanding INSTRUCTOR Yep Take basic turn ex ample have input aileron control tions just few lines Let joints dont want anything solid read youresist direction turn put Instructions fly Crosswind Once wing panels joined use hot some up elevator compensate loss go up pull right stick back lift because lift vector wings isTo go down push right stick forward now tilted respect vertical AndTo turn right push right stick good fliers add rudder compensate ad- right verse yawand great fliers add littleTo turn left posh right stick left power compensate extra drag go faster push left stick forward control inputs To go slower pull left stick back neutralize aileron proper INSTRUCTOR ridiculous let bank angle established continue fly check out BEGINNER No wait in-THE BEST IN SCALE LATNESstruction saysOver 25 Years Service PRECISION INSTRUMENTS'Note Crosswind can flown MILLS METALS BOOKSanyone Youthrough the%fS~sPlans Epoxy Glass Kits COMPLETE CATALOG $200almoststeer itairScale Docanteneasine L. y beginner can fly Crosswind intui-Winners atK a.i5. $400 lOGOs items CejJust way steer car ground itish Magazine Plans 5prmnqf1O OH 41551tivel An experienced RChoweverToledo-Master Interents & mareDUIUIUU 13 32 8562pilotBob will able fly hoursHolman Box 141 San Bernardino CA 92402 4 VINYLWRITE CUSTOM LEITERING Providing elegant time saving economical finishing touch modelers EZ TO APPLY ering comes prespaced prealignedsaving hours cutting fuss Th decals text custom corn uter cut 3M aligning individual letters ese cast vinyl 2 mu thin olors pe styles including Military B k igh NOW AVAILABLE Stencil asColor Outlining Premiumoc Priced right no minimum charge Eg AMA plus number ~PROTh7vE RACKINGAMAYOURE DONE1pack & sample ITS FREE P5ELOFFThECARRIERTAPE1high 2high plus $125P&H orders processed upon recjitSTEP BACK ADMIRE YOUR WORK Call write complete info VIF4YLWEITE CUSTOM LEllERING tom Letter Today 16043 Tulsa Streetj Granada Hills CA 91344--------- VINYLWRITE Way 818 363-7131 Noon 6PM Pacific order CA add tax 186 Model Aviation SPECIALISTS INCUS TOM COX TEE DEE& REED ENGINES 020S 049S 051S 074S & 09S ALL CUS TOM & STOCKPARTS VAILABLE INDIVIDUALLY COMPETITIONACCESSORIES RACING WHEELS KLOTZOIL CARBON FIBER SOLID LINES ALL KINDS OFFUEL TUBING THREEBRANDS OFGLOWPLUGS HA RD-TO-FIND HARD WA RE OLD TIMER SUPPLIES COILS CONDENSERS NGK& STITT SPARK PLUGS SILK8 COLORS QUA LITYDOPEBRUSHES 5& 7LOOP 1/4RUBBER BANDS TRANSISTOR IGNITIONSYSTEMS RESISTOR HIGH TENSION LEADS 1/2A TEXACO PLA YBOYSR KIT 1/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBERPOWERKITS PROPS TISSUEAND OTHER SUPPLIES CYANOACRYLA TES& EPOXIES ORDER BY MAIL OR PHONE 619 728-4365 SORRY NO COD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $300 STOCK ORDERS SHIPPED WITHIN 24 HRS wire straightedge cut out spar box Cut way through wing cutting tool use bent piece / wire wooden handle end wire attached foam-cutter power supply Cutting out box takes about 30 seconds per wing box removed two halves wing remain Frank means spar runs whole length wing core section designs don t case Ii make spar cutout root end coreBB servos mounted wing now time route hot wire small channel halves accept servo wire Now build spars construction % less spruce will serve top bottom spar caps addi tional strength required laminate carbon fiber onto spruce using PlC PlastiStic Terminator uses %2-in thick x -in wide spruce top bot tom 7-mit carbon fiber laminated bot tom both spar caps bottom spar cap has two additional laminates 7-mil carbon spar length 1A spar length Now place foam core bottom core bed wing box space place both top bottom spar caps top spar caps place whatever material intend use shear web Terminator uses six- eight-pounddensity urethane/polyester foam Aircraft Spruce although vertical-grain balsa would work well Mark shear web material along wing upper surface remove sand saw mark Using CyA PlastiStic best glue top bottom spar caps shear web Test fit completed spars wing should flush top bottom both spars completed mark wing rod carrier tubes desired dihedral angle Cut out marks tack glue tubes spars held desired rake dihedral Fill around carrier tubes epoxy mi croballoons wrap whole assembly 17oz Kevlar cloth Using 30-minute epoxy wet out Kevlar epoxy finished spars wings Total time wing construction point should less two hours Finish wings adding alignment rod carriers mounting blocks wing locks end caps etc Now using lightweight spackle Red Devil Time DAP Fast Final care fully fill dips discontinuities core surfaces Some builders squeegee light surface coat thinned spackle entire surface im prove adhesionBB spackle has dried use fine sandpaper 220 grit batten fair wing surfaces completely smooth use epoxy microballoons mix much harder foam will sand evenly Lightweight spackle sands just right adds little GATOR TRANSMITER CASE Sturdy wood/metal construction Waterproof vinyl covered exterior Convoluted foam liner Durable hinges latches withstand rough handling Accomodates single two stick transmitters Protect expensive transunitter.$2495 feather lite GLASS CLOTH 7 oz/sq yd weight close weave makes glass cloth easy filling extremely light finished weight Big 3 sq yd package detailed instructions$895 SOFT-N-SAFE MOUNT new type engine soft mount using special serrated Iso-damp grommets engine always safely retained Veiy effective vibration reduction dramatic decrease engine shake Available vely light machined alum beam mount 60 2/strokes 120 4/strokes Also available alum plate radial mount 60 2/strokes Soft-N-Safe 120 beam mount complete 5 Soft-N-Safe 60 beam mount complete 95 Soft-N-Safe 60 radial mount complete 5 Soft-N-Safe replacement Iso-damp grommets Specify soft firm Pkg 4 295 RADIAL ISO-MOUNTS Conventional plate type mount using four Lord/type Iso-mounts Soft 50 duro yellow firm 60 duro purple Iso-mounts available Optimized lowest vibration transmission airframe 60 Radial Iso-mount complete mount 95 Specify soft 50 duro firm 60 duro Iso-mounts Pkg four 995 5/8 dia x 1/2 long 8-32 female end 8-32 x 1/2 male other end Specify soft 50 duro yellow firm 60 duro purple Include $250/Item UPSFL Residents Add 6% Tax GATOR R/C PRODUCTS 3713 Pompano Dr Pensacola FI32514 904/476-8639 F March 1991 187 OUR RE V-UP IN VENTORY VERA GES 0 VER 9000 PROPS! IMMEDIA TESHIPMENTON WSA/MC Get starting po fmm THIS EXCITING AIRCRAFT WAS DESIGNED BY KIETH RIDER PURCHASED AND RE-ENGINED BY BILL SCHOENFELDT WITH AL MENASCOS SUPER BUCCANEER WITH TONY LeVIER AS PILOT THE FIRECRACKER WAS FLOWN WITH GREAT SUCCESS IN BOTH THE THOMPSON TROPHY AND GREVE AIR RACES WI LLIAMS BROS INC 181 PAWNEE ST SAN MARCOS CA 92069 619 744-3082 DEPT MA weight used non-load-bearing ca pacity Filling fairing critical step getting good-looking wing right Sanding foam apackle much much easier sanding ep oxy glass finished surface minute will save 30 later whole filling sanding process should take few minutes exclusive drying time Now ready vacuum bag Vacuum bagging can get equip ment materials need vacuum bagging less $30 need following vacuum pump compressor old refrigerator will workzero cost done right Vacuum pumps can purchased compa nies denoted VP list belowBB vacuum gauge T-fittings hoseSears sells complete hoses fittings $15 Trac Auto has less VG roll weather-stripping caulkSears again about $3 length 20-in-wide tubular 6-mil poly bag materialwidely available BM 20C per foot Weston Aerodesign Enough 14-mil Mylar sheet make top bottom covers surfaces bagged widely available MS $4 14/40-in-wide ft matcneo rerrormance ysiem TOP PERFORMANCE K&B ENGINES AirplaneMarine K&B FUELS K&B GLOW PLUGS 9 Blends4 Choices Matched Finish System BEST APPEARANCE K&5 FIBERGLASS CLOTHKSEs FILLER K&B SUPER FOXY RESINK&8THINNER K&B SUPER POXY PRIMER t&5 SUPER FOXY PAINT Weston Aerodesign Cut bag material about foot longer wingspan Seal end securely caulk Near end bag punch hole large enough insert bicycle-tube tire stem About 2-in-square piece tube should left stem Remove valve caulk stem side bag Please note good idea ever got Jack Cash Place few paper towels bag allow air flow stem corners bag once vacuum starts build Place strip caulk other end bag dont seal yet wing goes its ready Connect intake line salvaged compressor valve stem Use T-fitting somewhere line connect vacuum gauge assume have wired up tested compressor works reliably Watch out spray oil compressor exhaust line Glassing wings Start cutting two Mylar carrier sheets wing planform plus about A-in overlap Use several pieces masking tape join sheets trailing edges leaving about %2-in gap masking tape side down lay joined Mylar carrier Continued page 192 AbKOMUUISL ChANT Si-LARK ARC PRE-BUILT G SHARK $21495 SEE YOUR HOBBY DEALER FIRST SEND STAMPED #10 ENVELOPE FOR INFO KINGS WAY RIG HOBBY SUPPLY 5559 RECHMOND HOUSTON TX 77056 DEALERS ONLY 1-800-621-7783 1/32 SCALE PLANE TRACKER PILOT GLASSES High impact polycarbonate extra protect ion Dual gradient lens [Mirror Gray] Fit over prescription glasses Hard coated scratch resistance 1 year limited warranty Case Included AVAILABLE IN Clear $1795 Amber $1995 Gray $1995 Mirror Gray $2495 CA Mask Paint Mask Banded Ear Plugs $1695 $2295 $795 L 15 See hobby dealer first doesn have what need order direct SAFETY PLUS P 0 Box 1173 Dept iM Clinton MS 39060 1-800-842-7233 Cont US 601 924-9640 Satialaclion guaranteed Shi ing handling included dd $350 lot CD VISA lMC 188 Model Aviation wraparouna styie eliminates glare angles Blocks 100% harmful UV rays h p Electric F ight Haa Brake nth Lightweight 02 00money back Adjustable switching point guarantee Soidertess tenninat easy hookup ON/OFF Control ler2995 Mom Power save weight 25 Size 22x13x63 efficiency 006V loss Add SICOPo shippiog Califonisosidooisadd 725% 5217 Ta Send Cheek money order High Sky Fotaba eoooootse3929 Kansas St #9 sib 50bSan DiegoCA 92104 sheets flat surface Use carnauba car wax mold release Mylar sheets epoxy resin wont stick Unroll 2-oz glass cloth GC 450 bias over Mylar trim razor Mylar edges again bias going other way get two layers glass Now lay strip glass wing root edge Mylar out about six inches Lay other Out about three inches extra pieces will add strength wing root Cloth lay-up schedulesie weight type cloth num ber plieswill vary glider glider builder builder probably biggest trick baggingBB Put piece poly film un der Mylars keep resin off table Cut 1- 2-in-wide strip 2- 3-oz glass cloth long enough reach wing root way around tip Mix small amount same epoxy will use lamination acid brush attach strip leading edge foam core around tip Use little resin possible get glass wet resin needs tacky stage before going next step leading edge piece doesnt move around Spread laminating epoxy using 3-in foam roller over glass laid top Mylar sheets use West System 205 epoxy 206 hardener WS Other resins denoted ER belowBB highly recommend adding white pigment WP laminating epoxy pigment will give very nice color finished wing eliminate need paint glass wet lay super-absorbent paper towels top whole lay-up Use dry roller roll towels onto wet glass towels will absorb excess resin Let sit minute peel off dis card Some builders apply resin cloth layer squeegee off excess using paper towel trickBB Now take wing core position verti cally its trailing edge aligned between two sheets Mylar Fold sheets Mylar gether around core Set assembly bottom foam core bed correct position Use pieces masking tape end keep things shifting Slide whole thing vac uum bag seal end bag draw about five inches vacuum gauge Smooth out wrinkles make sure wing perfectly flat draw about 15 inches anything over 3 4 inches seems trick bag has slow leak 15 inches will show Note Some builders put wing bag placing bottom core bed between bag table Under light vacuum wing checked make sure lies true straight bed wing warped twisted stage itll crooked forever fidl vacuum can pulled Needless say bed must perfectly flat surfaceBB bag leaks check seals end around valve stem bag still leaks loses vacuum within few minutes probably pinholes bag material Pinholes almost impossible find left two options Either start over again another bag best choice run pump continu ously bums out compressors requires frequent attendance acquire com pressor try get large vacuum reservoir possible bigger reservoir longer can hold vacuum against slow leak Once get vacuum steady walk away dont bother anything least eight hours After eight hours epoxy will have set assembly can removed bag re move Mylar wing least 24 hours dont exert pressure directly against surface Until epoxy cures up hard very easy dimple wing sur face After week cure surface very ding resistant Peel Mylars carefully wing Trim sand flash edges have pigmented resin unless add ing flaps and/or ailerons wing finished add flaps/ailerons cut along hinge line razor metal straightedge Aluminum Sponsored byTri-Valley RIC Flyers Rosemount MN SUNBIRD SENSATION WITH STYLE Sunbird combines eye opening performance truly distinctive styling terrific flying design Whether choose 40 size Sunbird 10 Sunbird Jr youll find Sunbird perfect sport plane fl PRECISION PRODUCTS INC 714 592-5144 510 E Arrow Highway San Dimas CA 91773 r213x AIR WOLF EPOXY FIBERGLASS FUSELAGES TAKES MOST 50-60 MECHANICS OTHER MODELS AVAILABLE LARRY JOLLY MODEL PRODUCTS $21000 5501 WCOMO SANTA ANA CALIFORNIA 92703 714 826-6861 9OfDAIPOPAT PLOTS Sede ng rting Ssvices 3 Views D-TECI4 SYSTEMS Catdog $tOO 62916 8th Annual Swap Meet Sat Feb 16 1991 400 3 Convention Rooms Big INN 494 & Cedar Ave S Hwy 77 Bloomington MN Contact 612-454-5672 Rubber & Engine Power Free Flight Display Control Line Electric Power RIC Airplanes new illuatreted 32 page tabloId size catalog us Canada $100 Foreigh *300 Penn Valley Hobby center 837-A W Main St Lansdale PA 19446 215- 3680170 arrow shaft tubes can epoxied leading edges surfaces add stiffness Use rattail chain-saw file suitable diameter file semicircular groove both wings trailing edge surfaces leading edge groove should just large enough accommodate tube necessary tubes may telescoped using graduated diameters closely match taper wing Glue tube leading edge sur face using 5-minute epoxy sure sur face true glue curing Control sur faces can attached wing using arrowshaft hinges tape prefer tape because quicker lighter generates no stress points wing because control surfaces can re moved time repair painting Safety note extremely careful han dling trailing edges surface can very sharp will cut like razor warning Ill wager will cut yourself first time Once surfaces attached wing ready go Perhaps youll want prime paint competition Sailplane pigmented epoxy gives very good finish Priming painting very very time-consuming adds up 15% weight wing Dont unless just have elect paint few words caution Most paint solvents will eat styrene foam very quickly Dont rub solvent wing sur face dont gloss thick coats paint until surface well filled two things can happen both bad First solvent will seep through pinholes surface cause bubbles paint second solvent will dissolve thin foam trailing edge thereby causing glass skins separate Its pretty sight whole construction process takes two six hours actual labor two wing halves depending size complexity wing about one-third one-half time required other construction meth od actual cost materials about 25% cost construction uses balsa wings compare very favorably weight other construction methods much stronger stiffer set Two Meter wings weighs about 10 oz Terminator wings weigh 20 oz finished wings can also take beating lost Terminator #2 about 1000 ft according Casio altitude watch inside think control cable parted plane made vertical dive warp speed recenfly-plowed field planting itself vertically up its wing rods mud damage limited bent wing rod loosened empennage minor gravel rash Re pairs took less 30 minutes flying next day building wings other method Final hint Kitplanes magazine publication builders experimental aircraft other loo nies usually lists fair number suppliers composite materials tools full good ideas too will also get some valuable tips reading articles Model Aviation magazine Pylon Racers some great painting Free Flighters use radical construction methods everyone interested aerodynamics control conclude article Frank listed sources bagging supplies Since writing Frank has gone supplies business himself broad line includes everything needed bagging attractive prices too putting bagging seminars shop Thank Frank Weston valuable article Send large SASE list Franks sup plies also contains full line Sailplanes including Two Meter SAM-I 100-in Merlin 138-in Magic 160-in-span Termina tor am considering putting together complete list ing sources Sailplane building materials parts kits etc What think E Jr FF Champs/Grasmeyer Continued page 121 mention driving steep curving mountain roads few guardrails Still managed arrive ample time scheduled 700 am first round orga nizers forced move FlA Thurs day FiC FiB Friday Satur day Leaving field late morning stopped briefly hotel ate lunch university Mostar Apparently col lege food bad everywhere After lunch two young Yugoslavian wom en graduates university took Gaglianos Bob Sifleet Mike Keller tour renowned World War II merug 7d 4 ~ Podaogn Inc Only ce-tit led checks money ordem accepted Minimum order S12OOtortlmepackagesotd Pomerpolests3Soperoackage -I- $150 shipping handling CT residento add 75% sales tao Prices suhiect change inithout notice DEALER INQUIRIES INVITED Fm bother intorrnaljon dealer prices send SASE tousiness Card SERMO RIC SNAP CONNECTORS Inc Cedar Corners Station Box 16787 Stamford CT 06905 203 322-6294 THE LEADER IN COM PETITION NEW p DIA 12 13 14 15 16 NEW HIGH TECH AIRFOIL SECTION 10T020% INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCH 5/a34 634 72833456 833/a4568 8/a4568/a7 94566Va77Ia 10456B/a7 106W8W 10SEW 114677Ia775/a8 ii SW 11 6EW* ll/a 67 12 4W 12 5W 12 56 13 56 14 56 15 56 16 4N 16 678 PROPELLERS 4 CYCLE SERIES 100 THP DESIGN TAILORED HELICAL PITCH DEVELOPEDTOGIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALL THE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW PITCH THP 66 77 Ia 8 677/a 8 677/a 8 67 678 March 1991 193 NEW p FINGER SAVER INC P RESENTS Patented Safety Retainer No damaged fingers Eliminates need helper Allows complete freedom START & ADJUST plane ALONE High quality steel Lightweight Compact MUST flier Dealers invited NOW ONLY $1995 s&h FL res add 7% tax FINGER SAVER INC PO Box 1416 St Petersburg FL 33731 PRO SERIES 3 RO PYLON RACING SERIES 500 DIAPITCH 75N5/aN 8I6Ia7V,75/a8 SERIES 400C 8a/66a1777 977Va7/a W WIDE BLADE EW EXTRA WIDE N NARROW
Edition: Model Aviation - 1991/03
Page Numbers: 48, 49, 186, 187, 188, 192, 193
VIKING CUP F3F Race1990 F3F FAI provisional class model Glider Slope Rac ing contrast normal US practice F3F ra ces plane time against clock Eu ropeans decided racing four planes time too expensive Americans other hand prefer daredevil mano-a-mano damn collisions heat-racing style competition would interesting some top racers would go Europe compete F3F Theres no reason shouldnt well because best racers probably just fast may seem bit tame comparison pressure ex citement still Since its likely FAI will adopt both types racing aspirants World Class slope competition will undoubtedly doing F3F Danish friend Preben Norholm has long-time promoter F3F fact Danes have dominated F3F years Recently Brit ish Germans have gotten very competitive what Preben others sport want see iendly international meetings tight competition between individuals coun tries Preben attended 1990 Viking Cup held central England last October kind enough send cs following report eight nations 16 teams 49 competi tOrs biggest international F3F contest ever perfect weather made greatest F3F event ever too bad no Amer ican competitors Mr Dale Willoughby ever came way Guam watch contest F3F advance over Europe 1991 likely see three international events Prague England Den mark meet again great Viking Cup Race 1992 likely Norway Nic Wright did again very precise consistent flying just miracle man transmitter hand resistance way 10th final round untilnow rather unknown Kowalski brothers Co logne Germany Kowalski brothers placed first second big Okioberfest F3B con test Munich just two weeks before always good strong wind mostly between 10 20 in/sec 22 44 mph Buxton slopes fabulous No raln except during practice round during wind exceeded upper limit 25 in/sec 55 mph Thats what call storm too cold taking time year account mostly tween 500 600 F results no less spectacular Before contest watched two con test flights below 40 seconds time saw Nic Wright earn 831 points discard round doing 3973 seconds because Peter Kowal ski made unbelievable 3303-second run same round Both brothers have wonderfully aggressive flying style fly same F3B models seem turn dime give SC change use Quabeck 10/90 wing airfoils 22% flaps flaps allerons de flected some 3 4 mm %42 down ward full Up elevator course record-breaking flights occasional wind its strong est combined big thermal Also top pilots turned 45- 50-second flight because did something wrong because fly during less favorable con ditions After 10 rounds evens out Two teams catne Germany four England Norway Iceland N Ireland two Denmark Representatives two new countries Austria France showed up came learnlike Ger mans did Denmark last year certainly did flying Team G-S together two Germans father son Horzitz never learned team got name did place too badly thanks son Armin Munich Germanys top F3B pilots 48 Model Aviation Radio Control Soaring Byron Blakeslee 3134 N Winnebafo Dr 35 Iceland population just over 200000 competes internationally F3F class Heres team competed England beautiful gliders national colors left Rafn Thorarensen Bodvar Gudmundsson Frimann Frimannason two three-man Danish teams viking cup Danish pianes typically use twist-wing roil control Viking Cup slope races England Peter Kowaiski Germany set new F3F speed record placed third overall Gilder de signed F3B competition 100-in span V-Tail Peters brother Klaus sec ond wIth Nic Wright Britain winning second time row Frank Westons 160-In wing span Termina tor Frank gives detailed description vacuum bag glider wings co lumn pupil Raif Decker Through first nine rounds Nic Peter very close nobody could know would wineven Nic mostly leading position last round Peter fly ing before Nic knew make record flight get ahead Nic too much nerves After two cuts A-base turn simply gave up completed flight inverted Second place safe thought did matter brother Klaus made perfect flight last round crept few points ahead him way three days after contest Nics wife Pam gave birth beautiful boy James So dont expect 21st century come much easier F3F pilots planet Thanks Preben Norholm fascinating report Making vacuum-bagged wings Im going de vote remainder months column single subject vacuum bagging method making Glider wings has around over 10 years hasnt become very popularuntil re cently see more builders go ing technique think its time pass along some detailed information Bagging still fairly high-tech process realize experienced builders will feel ready try think beginning Sailplaners will find interesting process ap preciate benefits file information away future reference bagging expert Frank Weston may recall Franks description Terminator last Augusts column Magic Januarys Franks article reprinted below originally ap peared Capital Area Soaring Associations newsletter ably edited Gus Pelasus Vacuum pumps available Frank among others about $120 Franks comment about making pump zero cost done right certainly piqued interest Next month Ill describe made pumpnot exactly nothing pretty cheap Now over Frank Jet Fuel Tanks So Inexpensive Theyre Going Fast Somebodys finally come up ducted fan fuel tank costs less Boeing 747 Whats 11-ounce Sullivan fuel tank #380 has advantages higher priced tanks well some sought-after features its own instance its seamless greater protection against leaks its reversible left nt tank Only /16 thick fits around virtually 4 6 diameter fan units because uses standard Sullivan hardware replacement parts readily available Fully equipped glow fuel parts simple kit enables convert gasoline use easily vent tube bubble also gives maximum capacity longer flights between re-fuelings Fly down dealer soon ask about Sullivan jet fuel tanks prices PRODUCI down earth weve made easier PD Box 5166 Baltimore MD 21224 ever take off Getting Better Ideas Off Ground learned lot designing building Termi nator much what learned can result lighter stronger stiffer cheaper quicker building no matter what project Termina tors wings biggest departure con ventional methods lets discuss build Foam Wing Cores Wing construction starts cutting cores extruded foam blank cutting foam cores nothing new wont get other say cost Gentle Lady kit can buy equipment necessary cut own cores Call Nor-Ray Products see Aircraft Spruce Specialty Company catalog comprehensive list sources materials tools provided end article Styrene foam comes two major varieties extruded expanded bead Expanded bead foam kind found soda coolers typ ical foam-and-balsa kits Expanded bead foam light because formed discrete separate expanded beads cant easily sanded ab sorbs resin between beads fragile respects Extruded foam homogene ous easily sanded absorbs little resin weighs costs little expanded bead differentials insignificant purposes Because extruded foam workable absorbs less resin foam used Gliders Extruded foam panels 4 ft x 8 ft x 15 can obtained VIeck Company Balti Ask Dow Greyboard weighs 15 pounds per cubic foot Less $10 worth foam will build two Terminators plus Two terContinued page 186 March 1991 49 FOAMAIREIHAIrILK 10 SPAN 30-33 LBS 50-7500 POWER 74 IN WING SPAN 6-7 LBS 45-60 POWER 10 SPAN 19-22 LBS 35-42CC POWER 5-10 LB PAYLOAD OPTIONAL SPREADER4 OH PLY FOAM AND BALSA WOODCHOOSE 3 OR 4 OH SLOW AND STABLE KIT $26995 SPDKiT$1995 T $69953 CH $14995 4 CH $16495 SEND $100 FOR CATALOGRT 1 NEODESIIA KS 66757 OF SAC KITS AND ACC325-2821 FREE SHIPPING ON KIT ORDERSseoASTERCARD could have revolutionized way begin-turn until ready come out youof dual instruction ner learns Radio Control flying dia-apply opposite aileron opposite rudderINSTRUCTOR Are saying e follows strictly fiction some-against proverse yaw relax up el-BEGINNER Yes Im going solo now day may have technology make itevator return controls neutral theyou want give some dual instruc factwings level power back cruisetion later E BEGINNER Want buy trainer ACT ACT II year laterRC Soaring/Blakeslee BEGINNER Hello Can Imy new RCContinued page 49 flyBEGINNER Hello Can fly new trainer hereCrosswind extruded toam cores cut actual INSTRUCTOR Have flown beforeINSTRUCTOR Have flown beforeairfoil cross section Glass skins add about 01 BEGINNER NoBEGINNER Noinches total thickness cant cut foam INSTRUCTOR Sorry Youll need manyINSTRUCTOR Sorry youll need manythat accuracy dont worry about hours dual instruction before can flyhours dual instruction before can flywings cut panel ie multiyour trainer yourselfyour model yourselfsweep-back leading edgeBB join BEGINNER itthat hard toNotto instruc- spray adhesive Dont use epoxy other hard reallyflyBEGINNERaccordingglues since will cutting sanding INSTRUCTOR Yep Take basic turn ex ample have input aileron control tions just few lines Let joints dont want anything solid read youresist direction turn put Instructions fly Crosswind Once wing panels joined use hot some up elevator compensate loss go up pull right stick back lift because lift vector wings isTo go down push right stick forward now tilted respect vertical AndTo turn right push right stick good fliers add rudder compensate ad- right verse yawand great fliers add littleTo turn left posh right stick left power compensate extra drag go faster push left stick forward control inputs To go slower pull left stick back neutralize aileron proper INSTRUCTOR ridiculous let bank angle established continue fly check out BEGINNER No wait in-THE BEST IN SCALE LATNESstruction saysOver 25 Years Service PRECISION INSTRUMENTS'Note Crosswind can flown MILLS METALS BOOKSanyone Youthrough the%fS~sPlans Epoxy Glass Kits COMPLETE CATALOG $200almoststeer itairScale Docanteneasine L. y beginner can fly Crosswind intui-Winners atK a.i5. $400 lOGOs items CejJust way steer car ground itish Magazine Plans 5prmnqf1O OH 41551tivel An experienced RChoweverToledo-Master Interents & mareDUIUIUU 13 32 8562pilotBob will able fly hoursHolman Box 141 San Bernardino CA 92402 4 VINYLWRITE CUSTOM LEITERING Providing elegant time saving economical finishing touch modelers EZ TO APPLY ering comes prespaced prealignedsaving hours cutting fuss Th decals text custom corn uter cut 3M aligning individual letters ese cast vinyl 2 mu thin olors pe styles including Military B k igh NOW AVAILABLE Stencil asColor Outlining Premiumoc Priced right no minimum charge Eg AMA plus number ~PROTh7vE RACKINGAMAYOURE DONE1pack & sample ITS FREE P5ELOFFThECARRIERTAPE1high 2high plus $125P&H orders processed upon recjitSTEP BACK ADMIRE YOUR WORK Call write complete info VIF4YLWEITE CUSTOM LEllERING tom Letter Today 16043 Tulsa Streetj Granada Hills CA 91344--------- VINYLWRITE Way 818 363-7131 Noon 6PM Pacific order CA add tax 186 Model Aviation SPECIALISTS INCUS TOM COX TEE DEE& REED ENGINES 020S 049S 051S 074S & 09S ALL CUS TOM & STOCKPARTS VAILABLE INDIVIDUALLY COMPETITIONACCESSORIES RACING WHEELS KLOTZOIL CARBON FIBER SOLID LINES ALL KINDS OFFUEL TUBING THREEBRANDS OFGLOWPLUGS HA RD-TO-FIND HARD WA RE OLD TIMER SUPPLIES COILS CONDENSERS NGK& STITT SPARK PLUGS SILK8 COLORS QUA LITYDOPEBRUSHES 5& 7LOOP 1/4RUBBER BANDS TRANSISTOR IGNITIONSYSTEMS RESISTOR HIGH TENSION LEADS 1/2A TEXACO PLA YBOYSR KIT 1/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBERPOWERKITS PROPS TISSUEAND OTHER SUPPLIES CYANOACRYLA TES& EPOXIES ORDER BY MAIL OR PHONE 619 728-4365 SORRY NO COD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $300 STOCK ORDERS SHIPPED WITHIN 24 HRS wire straightedge cut out spar box Cut way through wing cutting tool use bent piece / wire wooden handle end wire attached foam-cutter power supply Cutting out box takes about 30 seconds per wing box removed two halves wing remain Frank means spar runs whole length wing core section designs don t case Ii make spar cutout root end coreBB servos mounted wing now time route hot wire small channel halves accept servo wire Now build spars construction % less spruce will serve top bottom spar caps addi tional strength required laminate carbon fiber onto spruce using PlC PlastiStic Terminator uses %2-in thick x -in wide spruce top bot tom 7-mit carbon fiber laminated bot tom both spar caps bottom spar cap has two additional laminates 7-mil carbon spar length 1A spar length Now place foam core bottom core bed wing box space place both top bottom spar caps top spar caps place whatever material intend use shear web Terminator uses six- eight-pounddensity urethane/polyester foam Aircraft Spruce although vertical-grain balsa would work well Mark shear web material along wing upper surface remove sand saw mark Using CyA PlastiStic best glue top bottom spar caps shear web Test fit completed spars wing should flush top bottom both spars completed mark wing rod carrier tubes desired dihedral angle Cut out marks tack glue tubes spars held desired rake dihedral Fill around carrier tubes epoxy mi croballoons wrap whole assembly 17oz Kevlar cloth Using 30-minute epoxy wet out Kevlar epoxy finished spars wings Total time wing construction point should less two hours Finish wings adding alignment rod carriers mounting blocks wing locks end caps etc Now using lightweight spackle Red Devil Time DAP Fast Final care fully fill dips discontinuities core surfaces Some builders squeegee light surface coat thinned spackle entire surface im prove adhesionBB spackle has dried use fine sandpaper 220 grit batten fair wing surfaces completely smooth use epoxy microballoons mix much harder foam will sand evenly Lightweight spackle sands just right adds little GATOR TRANSMITER CASE Sturdy wood/metal construction Waterproof vinyl covered exterior Convoluted foam liner Durable hinges latches withstand rough handling Accomodates single two stick transmitters Protect expensive transunitter.$2495 feather lite GLASS CLOTH 7 oz/sq yd weight close weave makes glass cloth easy filling extremely light finished weight Big 3 sq yd package detailed instructions$895 SOFT-N-SAFE MOUNT new type engine soft mount using special serrated Iso-damp grommets engine always safely retained Veiy effective vibration reduction dramatic decrease engine shake Available vely light machined alum beam mount 60 2/strokes 120 4/strokes Also available alum plate radial mount 60 2/strokes Soft-N-Safe 120 beam mount complete 5 Soft-N-Safe 60 beam mount complete 95 Soft-N-Safe 60 radial mount complete 5 Soft-N-Safe replacement Iso-damp grommets Specify soft firm Pkg 4 295 RADIAL ISO-MOUNTS Conventional plate type mount using four Lord/type Iso-mounts Soft 50 duro yellow firm 60 duro purple Iso-mounts available Optimized lowest vibration transmission airframe 60 Radial Iso-mount complete mount 95 Specify soft 50 duro firm 60 duro Iso-mounts Pkg four 995 5/8 dia x 1/2 long 8-32 female end 8-32 x 1/2 male other end Specify soft 50 duro yellow firm 60 duro purple Include $250/Item UPSFL Residents Add 6% Tax GATOR R/C PRODUCTS 3713 Pompano Dr Pensacola FI32514 904/476-8639 F March 1991 187 OUR RE V-UP IN VENTORY VERA GES 0 VER 9000 PROPS! IMMEDIA TESHIPMENTON WSA/MC Get starting po fmm THIS EXCITING AIRCRAFT WAS DESIGNED BY KIETH RIDER PURCHASED AND RE-ENGINED BY BILL SCHOENFELDT WITH AL MENASCOS SUPER BUCCANEER WITH TONY LeVIER AS PILOT THE FIRECRACKER WAS FLOWN WITH GREAT SUCCESS IN BOTH THE THOMPSON TROPHY AND GREVE AIR RACES WI LLIAMS BROS INC 181 PAWNEE ST SAN MARCOS CA 92069 619 744-3082 DEPT MA weight used non-load-bearing ca pacity Filling fairing critical step getting good-looking wing right Sanding foam apackle much much easier sanding ep oxy glass finished surface minute will save 30 later whole filling sanding process should take few minutes exclusive drying time Now ready vacuum bag Vacuum bagging can get equip ment materials need vacuum bagging less $30 need following vacuum pump compressor old refrigerator will workzero cost done right Vacuum pumps can purchased compa nies denoted VP list belowBB vacuum gauge T-fittings hoseSears sells complete hoses fittings $15 Trac Auto has less VG roll weather-stripping caulkSears again about $3 length 20-in-wide tubular 6-mil poly bag materialwidely available BM 20C per foot Weston Aerodesign Enough 14-mil Mylar sheet make top bottom covers surfaces bagged widely available MS $4 14/40-in-wide ft matcneo rerrormance ysiem TOP PERFORMANCE K&B ENGINES AirplaneMarine K&B FUELS K&B GLOW PLUGS 9 Blends4 Choices Matched Finish System BEST APPEARANCE K&5 FIBERGLASS CLOTHKSEs FILLER K&B SUPER FOXY RESINK&8THINNER K&B SUPER POXY PRIMER t&5 SUPER FOXY PAINT Weston Aerodesign Cut bag material about foot longer wingspan Seal end securely caulk Near end bag punch hole large enough insert bicycle-tube tire stem About 2-in-square piece tube should left stem Remove valve caulk stem side bag Please note good idea ever got Jack Cash Place few paper towels bag allow air flow stem corners bag once vacuum starts build Place strip caulk other end bag dont seal yet wing goes its ready Connect intake line salvaged compressor valve stem Use T-fitting somewhere line connect vacuum gauge assume have wired up tested compressor works reliably Watch out spray oil compressor exhaust line Glassing wings Start cutting two Mylar carrier sheets wing planform plus about A-in overlap Use several pieces masking tape join sheets trailing edges leaving about %2-in gap masking tape side down lay joined Mylar carrier Continued page 192 AbKOMUUISL ChANT Si-LARK ARC PRE-BUILT G SHARK $21495 SEE YOUR HOBBY DEALER FIRST SEND STAMPED #10 ENVELOPE FOR INFO KINGS WAY RIG HOBBY SUPPLY 5559 RECHMOND HOUSTON TX 77056 DEALERS ONLY 1-800-621-7783 1/32 SCALE PLANE TRACKER PILOT GLASSES High impact polycarbonate extra protect ion Dual gradient lens [Mirror Gray] Fit over prescription glasses Hard coated scratch resistance 1 year limited warranty Case Included AVAILABLE IN Clear $1795 Amber $1995 Gray $1995 Mirror Gray $2495 CA Mask Paint Mask Banded Ear Plugs $1695 $2295 $795 L 15 See hobby dealer first doesn have what need order direct SAFETY PLUS P 0 Box 1173 Dept iM Clinton MS 39060 1-800-842-7233 Cont US 601 924-9640 Satialaclion guaranteed Shi ing handling included dd $350 lot CD VISA lMC 188 Model Aviation wraparouna styie eliminates glare angles Blocks 100% harmful UV rays h p Electric F ight Haa Brake nth Lightweight 02 00money back Adjustable switching point guarantee Soidertess tenninat easy hookup ON/OFF Control ler2995 Mom Power save weight 25 Size 22x13x63 efficiency 006V loss Add SICOPo shippiog Califonisosidooisadd 725% 5217 Ta Send Cheek money order High Sky Fotaba eoooootse3929 Kansas St #9 sib 50bSan DiegoCA 92104 sheets flat surface Use carnauba car wax mold release Mylar sheets epoxy resin wont stick Unroll 2-oz glass cloth GC 450 bias over Mylar trim razor Mylar edges again bias going other way get two layers glass Now lay strip glass wing root edge Mylar out about six inches Lay other Out about three inches extra pieces will add strength wing root Cloth lay-up schedulesie weight type cloth num ber plieswill vary glider glider builder builder probably biggest trick baggingBB Put piece poly film un der Mylars keep resin off table Cut 1- 2-in-wide strip 2- 3-oz glass cloth long enough reach wing root way around tip Mix small amount same epoxy will use lamination acid brush attach strip leading edge foam core around tip Use little resin possible get glass wet resin needs tacky stage before going next step leading edge piece doesnt move around Spread laminating epoxy using 3-in foam roller over glass laid top Mylar sheets use West System 205 epoxy 206 hardener WS Other resins denoted ER belowBB highly recommend adding white pigment WP laminating epoxy pigment will give very nice color finished wing eliminate need paint glass wet lay super-absorbent paper towels top whole lay-up Use dry roller roll towels onto wet glass towels will absorb excess resin Let sit minute peel off dis card Some builders apply resin cloth layer squeegee off excess using paper towel trickBB Now take wing core position verti cally its trailing edge aligned between two sheets Mylar Fold sheets Mylar gether around core Set assembly bottom foam core bed correct position Use pieces masking tape end keep things shifting Slide whole thing vac uum bag seal end bag draw about five inches vacuum gauge Smooth out wrinkles make sure wing perfectly flat draw about 15 inches anything over 3 4 inches seems trick bag has slow leak 15 inches will show Note Some builders put wing bag placing bottom core bed between bag table Under light vacuum wing checked make sure lies true straight bed wing warped twisted stage itll crooked forever fidl vacuum can pulled Needless say bed must perfectly flat surfaceBB bag leaks check seals end around valve stem bag still leaks loses vacuum within few minutes probably pinholes bag material Pinholes almost impossible find left two options Either start over again another bag best choice run pump continu ously bums out compressors requires frequent attendance acquire com pressor try get large vacuum reservoir possible bigger reservoir longer can hold vacuum against slow leak Once get vacuum steady walk away dont bother anything least eight hours After eight hours epoxy will have set assembly can removed bag re move Mylar wing least 24 hours dont exert pressure directly against surface Until epoxy cures up hard very easy dimple wing sur face After week cure surface very ding resistant Peel Mylars carefully wing Trim sand flash edges have pigmented resin unless add ing flaps and/or ailerons wing finished add flaps/ailerons cut along hinge line razor metal straightedge Aluminum Sponsored byTri-Valley RIC Flyers Rosemount MN SUNBIRD SENSATION WITH STYLE Sunbird combines eye opening performance truly distinctive styling terrific flying design Whether choose 40 size Sunbird 10 Sunbird Jr youll find Sunbird perfect sport plane fl PRECISION PRODUCTS INC 714 592-5144 510 E Arrow Highway San Dimas CA 91773 r213x AIR WOLF EPOXY FIBERGLASS FUSELAGES TAKES MOST 50-60 MECHANICS OTHER MODELS AVAILABLE LARRY JOLLY MODEL PRODUCTS $21000 5501 WCOMO SANTA ANA CALIFORNIA 92703 714 826-6861 9OfDAIPOPAT PLOTS Sede ng rting Ssvices 3 Views D-TECI4 SYSTEMS Catdog $tOO 62916 8th Annual Swap Meet Sat Feb 16 1991 400 3 Convention Rooms Big INN 494 & Cedar Ave S Hwy 77 Bloomington MN Contact 612-454-5672 Rubber & Engine Power Free Flight Display Control Line Electric Power RIC Airplanes new illuatreted 32 page tabloId size catalog us Canada $100 Foreigh *300 Penn Valley Hobby center 837-A W Main St Lansdale PA 19446 215- 3680170 arrow shaft tubes can epoxied leading edges surfaces add stiffness Use rattail chain-saw file suitable diameter file semicircular groove both wings trailing edge surfaces leading edge groove should just large enough accommodate tube necessary tubes may telescoped using graduated diameters closely match taper wing Glue tube leading edge sur face using 5-minute epoxy sure sur face true glue curing Control sur faces can attached wing using arrowshaft hinges tape prefer tape because quicker lighter generates no stress points wing because control surfaces can re moved time repair painting Safety note extremely careful han dling trailing edges surface can very sharp will cut like razor warning Ill wager will cut yourself first time Once surfaces attached wing ready go Perhaps youll want prime paint competition Sailplane pigmented epoxy gives very good finish Priming painting very very time-consuming adds up 15% weight wing Dont unless just have elect paint few words caution Most paint solvents will eat styrene foam very quickly Dont rub solvent wing sur face dont gloss thick coats paint until surface well filled two things can happen both bad First solvent will seep through pinholes surface cause bubbles paint second solvent will dissolve thin foam trailing edge thereby causing glass skins separate Its pretty sight whole construction process takes two six hours actual labor two wing halves depending size complexity wing about one-third one-half time required other construction meth od actual cost materials about 25% cost construction uses balsa wings compare very favorably weight other construction methods much stronger stiffer set Two Meter wings weighs about 10 oz Terminator wings weigh 20 oz finished wings can also take beating lost Terminator #2 about 1000 ft according Casio altitude watch inside think control cable parted plane made vertical dive warp speed recenfly-plowed field planting itself vertically up its wing rods mud damage limited bent wing rod loosened empennage minor gravel rash Re pairs took less 30 minutes flying next day building wings other method Final hint Kitplanes magazine publication builders experimental aircraft other loo nies usually lists fair number suppliers composite materials tools full good ideas too will also get some valuable tips reading articles Model Aviation magazine Pylon Racers some great painting Free Flighters use radical construction methods everyone interested aerodynamics control conclude article Frank listed sources bagging supplies Since writing Frank has gone supplies business himself broad line includes everything needed bagging attractive prices too putting bagging seminars shop Thank Frank Weston valuable article Send large SASE list Franks sup plies also contains full line Sailplanes including Two Meter SAM-I 100-in Merlin 138-in Magic 160-in-span Termina tor am considering putting together complete list ing sources Sailplane building materials parts kits etc What think E Jr FF Champs/Grasmeyer Continued page 121 mention driving steep curving mountain roads few guardrails Still managed arrive ample time scheduled 700 am first round orga nizers forced move FlA Thurs day FiC FiB Friday Satur day Leaving field late morning stopped briefly hotel ate lunch university Mostar Apparently col lege food bad everywhere After lunch two young Yugoslavian wom en graduates university took Gaglianos Bob Sifleet Mike Keller tour renowned World War II merug 7d 4 ~ Podaogn Inc Only ce-tit led checks money ordem accepted Minimum order S12OOtortlmepackagesotd Pomerpolests3Soperoackage -I- $150 shipping handling CT residento add 75% sales tao Prices suhiect change inithout notice DEALER INQUIRIES INVITED Fm bother intorrnaljon dealer prices send SASE tousiness Card SERMO RIC SNAP CONNECTORS Inc Cedar Corners Station Box 16787 Stamford CT 06905 203 322-6294 THE LEADER IN COM PETITION NEW p DIA 12 13 14 15 16 NEW HIGH TECH AIRFOIL SECTION 10T020% INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCH 5/a34 634 72833456 833/a4568 8/a4568/a7 94566Va77Ia 10456B/a7 106W8W 10SEW 114677Ia775/a8 ii SW 11 6EW* ll/a 67 12 4W 12 5W 12 56 13 56 14 56 15 56 16 4N 16 678 PROPELLERS 4 CYCLE SERIES 100 THP DESIGN TAILORED HELICAL PITCH DEVELOPEDTOGIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALL THE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW PITCH THP 66 77 Ia 8 677/a 8 677/a 8 67 678 March 1991 193 NEW p FINGER SAVER INC P RESENTS Patented Safety Retainer No damaged fingers Eliminates need helper Allows complete freedom START & ADJUST plane ALONE High quality steel Lightweight Compact MUST flier Dealers invited NOW ONLY $1995 s&h FL res add 7% tax FINGER SAVER INC PO Box 1416 St Petersburg FL 33731 PRO SERIES 3 RO PYLON RACING SERIES 500 DIAPITCH 75N5/aN 8I6Ia7V,75/a8 SERIES 400C 8a/66a1777 977Va7/a W WIDE BLADE EW EXTRA WIDE N NARROW
Edition: Model Aviation - 1991/03
Page Numbers: 48, 49, 186, 187, 188, 192, 193
VIKING CUP F3F Race1990 F3F FAI provisional class model Glider Slope Rac ing contrast normal US practice F3F ra ces plane time against clock Eu ropeans decided racing four planes time too expensive Americans other hand prefer daredevil mano-a-mano damn collisions heat-racing style competition would interesting some top racers would go Europe compete F3F Theres no reason shouldnt well because best racers probably just fast may seem bit tame comparison pressure ex citement still Since its likely FAI will adopt both types racing aspirants World Class slope competition will undoubtedly doing F3F Danish friend Preben Norholm has long-time promoter F3F fact Danes have dominated F3F years Recently Brit ish Germans have gotten very competitive what Preben others sport want see iendly international meetings tight competition between individuals coun tries Preben attended 1990 Viking Cup held central England last October kind enough send cs following report eight nations 16 teams 49 competi tOrs biggest international F3F contest ever perfect weather made greatest F3F event ever too bad no Amer ican competitors Mr Dale Willoughby ever came way Guam watch contest F3F advance over Europe 1991 likely see three international events Prague England Den mark meet again great Viking Cup Race 1992 likely Norway Nic Wright did again very precise consistent flying just miracle man transmitter hand resistance way 10th final round untilnow rather unknown Kowalski brothers Co logne Germany Kowalski brothers placed first second big Okioberfest F3B con test Munich just two weeks before always good strong wind mostly between 10 20 in/sec 22 44 mph Buxton slopes fabulous No raln except during practice round during wind exceeded upper limit 25 in/sec 55 mph Thats what call storm too cold taking time year account mostly tween 500 600 F results no less spectacular Before contest watched two con test flights below 40 seconds time saw Nic Wright earn 831 points discard round doing 3973 seconds because Peter Kowal ski made unbelievable 3303-second run same round Both brothers have wonderfully aggressive flying style fly same F3B models seem turn dime give SC change use Quabeck 10/90 wing airfoils 22% flaps flaps allerons de flected some 3 4 mm %42 down ward full Up elevator course record-breaking flights occasional wind its strong est combined big thermal Also top pilots turned 45- 50-second flight because did something wrong because fly during less favorable con ditions After 10 rounds evens out Two teams catne Germany four England Norway Iceland N Ireland two Denmark Representatives two new countries Austria France showed up came learnlike Ger mans did Denmark last year certainly did flying Team G-S together two Germans father son Horzitz never learned team got name did place too badly thanks son Armin Munich Germanys top F3B pilots 48 Model Aviation Radio Control Soaring Byron Blakeslee 3134 N Winnebafo Dr 35 Iceland population just over 200000 competes internationally F3F class Heres team competed England beautiful gliders national colors left Rafn Thorarensen Bodvar Gudmundsson Frimann Frimannason two three-man Danish teams viking cup Danish pianes typically use twist-wing roil control Viking Cup slope races England Peter Kowaiski Germany set new F3F speed record placed third overall Gilder de signed F3B competition 100-in span V-Tail Peters brother Klaus sec ond wIth Nic Wright Britain winning second time row Frank Westons 160-In wing span Termina tor Frank gives detailed description vacuum bag glider wings co lumn pupil Raif Decker Through first nine rounds Nic Peter very close nobody could know would wineven Nic mostly leading position last round Peter fly ing before Nic knew make record flight get ahead Nic too much nerves After two cuts A-base turn simply gave up completed flight inverted Second place safe thought did matter brother Klaus made perfect flight last round crept few points ahead him way three days after contest Nics wife Pam gave birth beautiful boy James So dont expect 21st century come much easier F3F pilots planet Thanks Preben Norholm fascinating report Making vacuum-bagged wings Im going de vote remainder months column single subject vacuum bagging method making Glider wings has around over 10 years hasnt become very popularuntil re cently see more builders go ing technique think its time pass along some detailed information Bagging still fairly high-tech process realize experienced builders will feel ready try think beginning Sailplaners will find interesting process ap preciate benefits file information away future reference bagging expert Frank Weston may recall Franks description Terminator last Augusts column Magic Januarys Franks article reprinted below originally ap peared Capital Area Soaring Associations newsletter ably edited Gus Pelasus Vacuum pumps available Frank among others about $120 Franks comment about making pump zero cost done right certainly piqued interest Next month Ill describe made pumpnot exactly nothing pretty cheap Now over Frank Jet Fuel Tanks So Inexpensive Theyre Going Fast Somebodys finally come up ducted fan fuel tank costs less Boeing 747 Whats 11-ounce Sullivan fuel tank #380 has advantages higher priced tanks well some sought-after features its own instance its seamless greater protection against leaks its reversible left nt tank Only /16 thick fits around virtually 4 6 diameter fan units because uses standard Sullivan hardware replacement parts readily available Fully equipped glow fuel parts simple kit enables convert gasoline use easily vent tube bubble also gives maximum capacity longer flights between re-fuelings Fly down dealer soon ask about Sullivan jet fuel tanks prices PRODUCI down earth weve made easier PD Box 5166 Baltimore MD 21224 ever take off Getting Better Ideas Off Ground learned lot designing building Termi nator much what learned can result lighter stronger stiffer cheaper quicker building no matter what project Termina tors wings biggest departure con ventional methods lets discuss build Foam Wing Cores Wing construction starts cutting cores extruded foam blank cutting foam cores nothing new wont get other say cost Gentle Lady kit can buy equipment necessary cut own cores Call Nor-Ray Products see Aircraft Spruce Specialty Company catalog comprehensive list sources materials tools provided end article Styrene foam comes two major varieties extruded expanded bead Expanded bead foam kind found soda coolers typ ical foam-and-balsa kits Expanded bead foam light because formed discrete separate expanded beads cant easily sanded ab sorbs resin between beads fragile respects Extruded foam homogene ous easily sanded absorbs little resin weighs costs little expanded bead differentials insignificant purposes Because extruded foam workable absorbs less resin foam used Gliders Extruded foam panels 4 ft x 8 ft x 15 can obtained VIeck Company Balti Ask Dow Greyboard weighs 15 pounds per cubic foot Less $10 worth foam will build two Terminators plus Two terContinued page 186 March 1991 49 FOAMAIREIHAIrILK 10 SPAN 30-33 LBS 50-7500 POWER 74 IN WING SPAN 6-7 LBS 45-60 POWER 10 SPAN 19-22 LBS 35-42CC POWER 5-10 LB PAYLOAD OPTIONAL SPREADER4 OH PLY FOAM AND BALSA WOODCHOOSE 3 OR 4 OH SLOW AND STABLE KIT $26995 SPDKiT$1995 T $69953 CH $14995 4 CH $16495 SEND $100 FOR CATALOGRT 1 NEODESIIA KS 66757 OF SAC KITS AND ACC325-2821 FREE SHIPPING ON KIT ORDERSseoASTERCARD could have revolutionized way begin-turn until ready come out youof dual instruction ner learns Radio Control flying dia-apply opposite aileron opposite rudderINSTRUCTOR Are saying e follows strictly fiction some-against proverse yaw relax up el-BEGINNER Yes Im going solo now day may have technology make itevator return controls neutral theyou want give some dual instruc factwings level power back cruisetion later E BEGINNER Want buy trainer ACT ACT II year laterRC Soaring/Blakeslee BEGINNER Hello Can Imy new RCContinued page 49 flyBEGINNER Hello Can fly new trainer hereCrosswind extruded toam cores cut actual INSTRUCTOR Have flown beforeINSTRUCTOR Have flown beforeairfoil cross section Glass skins add about 01 BEGINNER NoBEGINNER Noinches total thickness cant cut foam INSTRUCTOR Sorry Youll need manyINSTRUCTOR Sorry youll need manythat accuracy dont worry about hours dual instruction before can flyhours dual instruction before can flywings cut panel ie multiyour trainer yourselfyour model yourselfsweep-back leading edgeBB join BEGINNER itthat hard toNotto instruc- spray adhesive Dont use epoxy other hard reallyflyBEGINNERaccordingglues since will cutting sanding INSTRUCTOR Yep Take basic turn ex ample have input aileron control tions just few lines Let joints dont want anything solid read youresist direction turn put Instructions fly Crosswind Once wing panels joined use hot some up elevator compensate loss go up pull right stick back lift because lift vector wings isTo go down push right stick forward now tilted respect vertical AndTo turn right push right stick good fliers add rudder compensate ad- right verse yawand great fliers add littleTo turn left posh right stick left power compensate extra drag go faster push left stick forward control inputs To go slower pull left stick back neutralize aileron proper INSTRUCTOR ridiculous let bank angle established continue fly check out BEGINNER No wait in-THE BEST IN SCALE LATNESstruction saysOver 25 Years Service PRECISION INSTRUMENTS'Note Crosswind can flown MILLS METALS BOOKSanyone Youthrough the%fS~sPlans Epoxy Glass Kits COMPLETE CATALOG $200almoststeer itairScale Docanteneasine L. y beginner can fly Crosswind intui-Winners atK a.i5. $400 lOGOs items CejJust way steer car ground itish Magazine Plans 5prmnqf1O OH 41551tivel An experienced RChoweverToledo-Master Interents & mareDUIUIUU 13 32 8562pilotBob will able fly hoursHolman Box 141 San Bernardino CA 92402 4 VINYLWRITE CUSTOM LEITERING Providing elegant time saving economical finishing touch modelers EZ TO APPLY ering comes prespaced prealignedsaving hours cutting fuss Th decals text custom corn uter cut 3M aligning individual letters ese cast vinyl 2 mu thin olors pe styles including Military B k igh NOW AVAILABLE Stencil asColor Outlining Premiumoc Priced right no minimum charge Eg AMA plus number ~PROTh7vE RACKINGAMAYOURE DONE1pack & sample ITS FREE P5ELOFFThECARRIERTAPE1high 2high plus $125P&H orders processed upon recjitSTEP BACK ADMIRE YOUR WORK Call write complete info VIF4YLWEITE CUSTOM LEllERING tom Letter Today 16043 Tulsa Streetj Granada Hills CA 91344--------- VINYLWRITE Way 818 363-7131 Noon 6PM Pacific order CA add tax 186 Model Aviation SPECIALISTS INCUS TOM COX TEE DEE& REED ENGINES 020S 049S 051S 074S & 09S ALL CUS TOM & STOCKPARTS VAILABLE INDIVIDUALLY COMPETITIONACCESSORIES RACING WHEELS KLOTZOIL CARBON FIBER SOLID LINES ALL KINDS OFFUEL TUBING THREEBRANDS OFGLOWPLUGS HA RD-TO-FIND HARD WA RE OLD TIMER SUPPLIES COILS CONDENSERS NGK& STITT SPARK PLUGS SILK8 COLORS QUA LITYDOPEBRUSHES 5& 7LOOP 1/4RUBBER BANDS TRANSISTOR IGNITIONSYSTEMS RESISTOR HIGH TENSION LEADS 1/2A TEXACO PLA YBOYSR KIT 1/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBERPOWERKITS PROPS TISSUEAND OTHER SUPPLIES CYANOACRYLA TES& EPOXIES ORDER BY MAIL OR PHONE 619 728-4365 SORRY NO COD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $300 STOCK ORDERS SHIPPED WITHIN 24 HRS wire straightedge cut out spar box Cut way through wing cutting tool use bent piece / wire wooden handle end wire attached foam-cutter power supply Cutting out box takes about 30 seconds per wing box removed two halves wing remain Frank means spar runs whole length wing core section designs don t case Ii make spar cutout root end coreBB servos mounted wing now time route hot wire small channel halves accept servo wire Now build spars construction % less spruce will serve top bottom spar caps addi tional strength required laminate carbon fiber onto spruce using PlC PlastiStic Terminator uses %2-in thick x -in wide spruce top bot tom 7-mit carbon fiber laminated bot tom both spar caps bottom spar cap has two additional laminates 7-mil carbon spar length 1A spar length Now place foam core bottom core bed wing box space place both top bottom spar caps top spar caps place whatever material intend use shear web Terminator uses six- eight-pounddensity urethane/polyester foam Aircraft Spruce although vertical-grain balsa would work well Mark shear web material along wing upper surface remove sand saw mark Using CyA PlastiStic best glue top bottom spar caps shear web Test fit completed spars wing should flush top bottom both spars completed mark wing rod carrier tubes desired dihedral angle Cut out marks tack glue tubes spars held desired rake dihedral Fill around carrier tubes epoxy mi croballoons wrap whole assembly 17oz Kevlar cloth Using 30-minute epoxy wet out Kevlar epoxy finished spars wings Total time wing construction point should less two hours Finish wings adding alignment rod carriers mounting blocks wing locks end caps etc Now using lightweight spackle Red Devil Time DAP Fast Final care fully fill dips discontinuities core surfaces Some builders squeegee light surface coat thinned spackle entire surface im prove adhesionBB spackle has dried use fine sandpaper 220 grit batten fair wing surfaces completely smooth use epoxy microballoons mix much harder foam will sand evenly Lightweight spackle sands just right adds little GATOR TRANSMITER CASE Sturdy wood/metal construction Waterproof vinyl covered exterior Convoluted foam liner Durable hinges latches withstand rough handling Accomodates single two stick transmitters Protect expensive transunitter.$2495 feather lite GLASS CLOTH 7 oz/sq yd weight close weave makes glass cloth easy filling extremely light finished weight Big 3 sq yd package detailed instructions$895 SOFT-N-SAFE MOUNT new type engine soft mount using special serrated Iso-damp grommets engine always safely retained Veiy effective vibration reduction dramatic decrease engine shake Available vely light machined alum beam mount 60 2/strokes 120 4/strokes Also available alum plate radial mount 60 2/strokes Soft-N-Safe 120 beam mount complete 5 Soft-N-Safe 60 beam mount complete 95 Soft-N-Safe 60 radial mount complete 5 Soft-N-Safe replacement Iso-damp grommets Specify soft firm Pkg 4 295 RADIAL ISO-MOUNTS Conventional plate type mount using four Lord/type Iso-mounts Soft 50 duro yellow firm 60 duro purple Iso-mounts available Optimized lowest vibration transmission airframe 60 Radial Iso-mount complete mount 95 Specify soft 50 duro firm 60 duro Iso-mounts Pkg four 995 5/8 dia x 1/2 long 8-32 female end 8-32 x 1/2 male other end Specify soft 50 duro yellow firm 60 duro purple Include $250/Item UPSFL Residents Add 6% Tax GATOR R/C PRODUCTS 3713 Pompano Dr Pensacola FI32514 904/476-8639 F March 1991 187 OUR RE V-UP IN VENTORY VERA GES 0 VER 9000 PROPS! IMMEDIA TESHIPMENTON WSA/MC Get starting po fmm THIS EXCITING AIRCRAFT WAS DESIGNED BY KIETH RIDER PURCHASED AND RE-ENGINED BY BILL SCHOENFELDT WITH AL MENASCOS SUPER BUCCANEER WITH TONY LeVIER AS PILOT THE FIRECRACKER WAS FLOWN WITH GREAT SUCCESS IN BOTH THE THOMPSON TROPHY AND GREVE AIR RACES WI LLIAMS BROS INC 181 PAWNEE ST SAN MARCOS CA 92069 619 744-3082 DEPT MA weight used non-load-bearing ca pacity Filling fairing critical step getting good-looking wing right Sanding foam apackle much much easier sanding ep oxy glass finished surface minute will save 30 later whole filling sanding process should take few minutes exclusive drying time Now ready vacuum bag Vacuum bagging can get equip ment materials need vacuum bagging less $30 need following vacuum pump compressor old refrigerator will workzero cost done right Vacuum pumps can purchased compa nies denoted VP list belowBB vacuum gauge T-fittings hoseSears sells complete hoses fittings $15 Trac Auto has less VG roll weather-stripping caulkSears again about $3 length 20-in-wide tubular 6-mil poly bag materialwidely available BM 20C per foot Weston Aerodesign Enough 14-mil Mylar sheet make top bottom covers surfaces bagged widely available MS $4 14/40-in-wide ft matcneo rerrormance ysiem TOP PERFORMANCE K&B ENGINES AirplaneMarine K&B FUELS K&B GLOW PLUGS 9 Blends4 Choices Matched Finish System BEST APPEARANCE K&5 FIBERGLASS CLOTHKSEs FILLER K&B SUPER FOXY RESINK&8THINNER K&B SUPER POXY PRIMER t&5 SUPER FOXY PAINT Weston Aerodesign Cut bag material about foot longer wingspan Seal end securely caulk Near end bag punch hole large enough insert bicycle-tube tire stem About 2-in-square piece tube should left stem Remove valve caulk stem side bag Please note good idea ever got Jack Cash Place few paper towels bag allow air flow stem corners bag once vacuum starts build Place strip caulk other end bag dont seal yet wing goes its ready Connect intake line salvaged compressor valve stem Use T-fitting somewhere line connect vacuum gauge assume have wired up tested compressor works reliably Watch out spray oil compressor exhaust line Glassing wings Start cutting two Mylar carrier sheets wing planform plus about A-in overlap Use several pieces masking tape join sheets trailing edges leaving about %2-in gap masking tape side down lay joined Mylar carrier Continued page 192 AbKOMUUISL ChANT Si-LARK ARC PRE-BUILT G SHARK $21495 SEE YOUR HOBBY DEALER FIRST SEND STAMPED #10 ENVELOPE FOR INFO KINGS WAY RIG HOBBY SUPPLY 5559 RECHMOND HOUSTON TX 77056 DEALERS ONLY 1-800-621-7783 1/32 SCALE PLANE TRACKER PILOT GLASSES High impact polycarbonate extra protect ion Dual gradient lens [Mirror Gray] Fit over prescription glasses Hard coated scratch resistance 1 year limited warranty Case Included AVAILABLE IN Clear $1795 Amber $1995 Gray $1995 Mirror Gray $2495 CA Mask Paint Mask Banded Ear Plugs $1695 $2295 $795 L 15 See hobby dealer first doesn have what need order direct SAFETY PLUS P 0 Box 1173 Dept iM Clinton MS 39060 1-800-842-7233 Cont US 601 924-9640 Satialaclion guaranteed Shi ing handling included dd $350 lot CD VISA lMC 188 Model Aviation wraparouna styie eliminates glare angles Blocks 100% harmful UV rays h p Electric F ight Haa Brake nth Lightweight 02 00money back Adjustable switching point guarantee Soidertess tenninat easy hookup ON/OFF Control ler2995 Mom Power save weight 25 Size 22x13x63 efficiency 006V loss Add SICOPo shippiog Califonisosidooisadd 725% 5217 Ta Send Cheek money order High Sky Fotaba eoooootse3929 Kansas St #9 sib 50bSan DiegoCA 92104 sheets flat surface Use carnauba car wax mold release Mylar sheets epoxy resin wont stick Unroll 2-oz glass cloth GC 450 bias over Mylar trim razor Mylar edges again bias going other way get two layers glass Now lay strip glass wing root edge Mylar out about six inches Lay other Out about three inches extra pieces will add strength wing root Cloth lay-up schedulesie weight type cloth num ber plieswill vary glider glider builder builder probably biggest trick baggingBB Put piece poly film un der Mylars keep resin off table Cut 1- 2-in-wide strip 2- 3-oz glass cloth long enough reach wing root way around tip Mix small amount same epoxy will use lamination acid brush attach strip leading edge foam core around tip Use little resin possible get glass wet resin needs tacky stage before going next step leading edge piece doesnt move around Spread laminating epoxy using 3-in foam roller over glass laid top Mylar sheets use West System 205 epoxy 206 hardener WS Other resins denoted ER belowBB highly recommend adding white pigment WP laminating epoxy pigment will give very nice color finished wing eliminate need paint glass wet lay super-absorbent paper towels top whole lay-up Use dry roller roll towels onto wet glass towels will absorb excess resin Let sit minute peel off dis card Some builders apply resin cloth layer squeegee off excess using paper towel trickBB Now take wing core position verti cally its trailing edge aligned between two sheets Mylar Fold sheets Mylar gether around core Set assembly bottom foam core bed correct position Use pieces masking tape end keep things shifting Slide whole thing vac uum bag seal end bag draw about five inches vacuum gauge Smooth out wrinkles make sure wing perfectly flat draw about 15 inches anything over 3 4 inches seems trick bag has slow leak 15 inches will show Note Some builders put wing bag placing bottom core bed between bag table Under light vacuum wing checked make sure lies true straight bed wing warped twisted stage itll crooked forever fidl vacuum can pulled Needless say bed must perfectly flat surfaceBB bag leaks check seals end around valve stem bag still leaks loses vacuum within few minutes probably pinholes bag material Pinholes almost impossible find left two options Either start over again another bag best choice run pump continu ously bums out compressors requires frequent attendance acquire com pressor try get large vacuum reservoir possible bigger reservoir longer can hold vacuum against slow leak Once get vacuum steady walk away dont bother anything least eight hours After eight hours epoxy will have set assembly can removed bag re move Mylar wing least 24 hours dont exert pressure directly against surface Until epoxy cures up hard very easy dimple wing sur face After week cure surface very ding resistant Peel Mylars carefully wing Trim sand flash edges have pigmented resin unless add ing flaps and/or ailerons wing finished add flaps/ailerons cut along hinge line razor metal straightedge Aluminum Sponsored byTri-Valley RIC Flyers Rosemount MN SUNBIRD SENSATION WITH STYLE Sunbird combines eye opening performance truly distinctive styling terrific flying design Whether choose 40 size Sunbird 10 Sunbird Jr youll find Sunbird perfect sport plane fl PRECISION PRODUCTS INC 714 592-5144 510 E Arrow Highway San Dimas CA 91773 r213x AIR WOLF EPOXY FIBERGLASS FUSELAGES TAKES MOST 50-60 MECHANICS OTHER MODELS AVAILABLE LARRY JOLLY MODEL PRODUCTS $21000 5501 WCOMO SANTA ANA CALIFORNIA 92703 714 826-6861 9OfDAIPOPAT PLOTS Sede ng rting Ssvices 3 Views D-TECI4 SYSTEMS Catdog $tOO 62916 8th Annual Swap Meet Sat Feb 16 1991 400 3 Convention Rooms Big INN 494 & Cedar Ave S Hwy 77 Bloomington MN Contact 612-454-5672 Rubber & Engine Power Free Flight Display Control Line Electric Power RIC Airplanes new illuatreted 32 page tabloId size catalog us Canada $100 Foreigh *300 Penn Valley Hobby center 837-A W Main St Lansdale PA 19446 215- 3680170 arrow shaft tubes can epoxied leading edges surfaces add stiffness Use rattail chain-saw file suitable diameter file semicircular groove both wings trailing edge surfaces leading edge groove should just large enough accommodate tube necessary tubes may telescoped using graduated diameters closely match taper wing Glue tube leading edge sur face using 5-minute epoxy sure sur face true glue curing Control sur faces can attached wing using arrowshaft hinges tape prefer tape because quicker lighter generates no stress points wing because control surfaces can re moved time repair painting Safety note extremely careful han dling trailing edges surface can very sharp will cut like razor warning Ill wager will cut yourself first time Once surfaces attached wing ready go Perhaps youll want prime paint competition Sailplane pigmented epoxy gives very good finish Priming painting very very time-consuming adds up 15% weight wing Dont unless just have elect paint few words caution Most paint solvents will eat styrene foam very quickly Dont rub solvent wing sur face dont gloss thick coats paint until surface well filled two things can happen both bad First solvent will seep through pinholes surface cause bubbles paint second solvent will dissolve thin foam trailing edge thereby causing glass skins separate Its pretty sight whole construction process takes two six hours actual labor two wing halves depending size complexity wing about one-third one-half time required other construction meth od actual cost materials about 25% cost construction uses balsa wings compare very favorably weight other construction methods much stronger stiffer set Two Meter wings weighs about 10 oz Terminator wings weigh 20 oz finished wings can also take beating lost Terminator #2 about 1000 ft according Casio altitude watch inside think control cable parted plane made vertical dive warp speed recenfly-plowed field planting itself vertically up its wing rods mud damage limited bent wing rod loosened empennage minor gravel rash Re pairs took less 30 minutes flying next day building wings other method Final hint Kitplanes magazine publication builders experimental aircraft other loo nies usually lists fair number suppliers composite materials tools full good ideas too will also get some valuable tips reading articles Model Aviation magazine Pylon Racers some great painting Free Flighters use radical construction methods everyone interested aerodynamics control conclude article Frank listed sources bagging supplies Since writing Frank has gone supplies business himself broad line includes everything needed bagging attractive prices too putting bagging seminars shop Thank Frank Weston valuable article Send large SASE list Franks sup plies also contains full line Sailplanes including Two Meter SAM-I 100-in Merlin 138-in Magic 160-in-span Termina tor am considering putting together complete list ing sources Sailplane building materials parts kits etc What think E Jr FF Champs/Grasmeyer Continued page 121 mention driving steep curving mountain roads few guardrails Still managed arrive ample time scheduled 700 am first round orga nizers forced move FlA Thurs day FiC FiB Friday Satur day Leaving field late morning stopped briefly hotel ate lunch university Mostar Apparently col lege food bad everywhere After lunch two young Yugoslavian wom en graduates university took Gaglianos Bob Sifleet Mike Keller tour renowned World War II merug 7d 4 ~ Podaogn Inc Only ce-tit led checks money ordem accepted Minimum order S12OOtortlmepackagesotd Pomerpolests3Soperoackage -I- $150 shipping handling CT residento add 75% sales tao Prices suhiect change inithout notice DEALER INQUIRIES INVITED Fm bother intorrnaljon dealer prices send SASE tousiness Card SERMO RIC SNAP CONNECTORS Inc Cedar Corners Station Box 16787 Stamford CT 06905 203 322-6294 THE LEADER IN COM PETITION NEW p DIA 12 13 14 15 16 NEW HIGH TECH AIRFOIL SECTION 10T020% INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCH 5/a34 634 72833456 833/a4568 8/a4568/a7 94566Va77Ia 10456B/a7 106W8W 10SEW 114677Ia775/a8 ii SW 11 6EW* ll/a 67 12 4W 12 5W 12 56 13 56 14 56 15 56 16 4N 16 678 PROPELLERS 4 CYCLE SERIES 100 THP DESIGN TAILORED HELICAL PITCH DEVELOPEDTOGIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALL THE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW PITCH THP 66 77 Ia 8 677/a 8 677/a 8 67 678 March 1991 193 NEW p FINGER SAVER INC P RESENTS Patented Safety Retainer No damaged fingers Eliminates need helper Allows complete freedom START & ADJUST plane ALONE High quality steel Lightweight Compact MUST flier Dealers invited NOW ONLY $1995 s&h FL res add 7% tax FINGER SAVER INC PO Box 1416 St Petersburg FL 33731 PRO SERIES 3 RO PYLON RACING SERIES 500 DIAPITCH 75N5/aN 8I6Ia7V,75/a8 SERIES 400C 8a/66a1777 977Va7/a W WIDE BLADE EW EXTRA WIDE N NARROW